The Six Sigma Methodology is a set of business tools, statistical theory, and quality control knowledge that helps improve your business procedures. After we write the rule we need to save the file and use sigmac (available in the repo) to compile the rule. Meaning of sigma bond. 9. A normal distribution, often represented by a bell curve, is a common model used in many experiments. Sigma males tend to be good listeners as they understand the value of silence and respect when others speak as a matter of mutual courtesy. the 18th letter of the Greek alphabet. However in the symbolic schematic it may be the + or - depending on how it is configured. 5. They give importance to content rather than the volume and thus listen well and speak when required. 7 percent. mathematics. In October 2022, two amateur improvisational actors played a media prank, pretending to be newly fired Twitter employees "Rahul Ligma" and "Daniel Johnson" on the eve of Elon Musk 's takeover of the company, and multiple major media outlets reported the incident as actual news. Sigma is a measure which uses the characteristic of past data to make judgments about how the process will perform in the future. inverse cosine (arccos) of a value or expression. Six Sigma is a method that provides organizations tools to improve the capability of their business processes. It involves the use of a team of experts. Then F F is called a σ σ -algebra on Ω Ω if the following are satisfied: (1) ϕ ∈ F ϕ ∈ F. Mean and Sigma. What does Sigma mean? Information and translations of Sigma in the most comprehensive dictionary definitions resource on the web. 2. Higher sigma values mean that the discovery is less and less likely to be accidentally a mistake. Scientists calculate this by measuring the signal against the expected fluctuations in the background noise across the whole range. In business applications, three-sigma refers. In this video, I share what LIGMA means, the history behind this fictitious illness, and other similar memes. Phi Beta Sigma Fraternity, Inc. Sigma Sigma Sigma is a member of the National Panhellenic Conference (NPC), an umbrella organization encompassing 26 national sororities or women's fraternities, which focus on service, education, scholarship programming and social activities. the symbol Σ, indicating summation of the numbers or quantities indicated. Image: Shutterstock. Six Sigma at many organizations simply means a measure of quality that strives for near perfection. Sigma males share many traits in common with the alpha archetype, though their tendency to walk outside of the lines of traditional social dominance hierarchies sets them apart and. They are successful, good-looking, dominant, and influential but tend to be loners. This is where you need to put your thinking caps on because 5-sigma doesn’t mean there’s a 1 in 3. 2. sinh. The chronic and often fatal condition known as LIGMA is brought on by the BOFA ("biologically offset farkwonian asintits") virus. Langston Taylor, Leonard F. the 18th letter of the Greek alphabet. (ˈsɪɡmə ) noun. The symbol Σ (sigma) is generally used to denote a sum of multiple terms. Greek Small Letter Sigma. However in the symbolic schematic it may be the + or - depending on how it is configured. 5 billion views on TikTok . Sigma is the eighteenth letter of the Greek alphabet. They work out ways to avoid drama and attention, keeping themselves private and, of course, mysterious…. 2010, Sergio J. Sigma (uppercase Σ, lowercase σ) is the 18th letter of the Modern Greek alphabet. -finite. sugma. Usually nonfatal and asymptomatic, however, once it progresses to Stage 2 (Ligma), it is extremely dangerous. is that mean is the average of a set of values, calculated by summing them together and dividing by the number of terms; the arithmetic mean while sigma is the symbol σ, used to indicate one standard deviation from the mean, particularly in a normal distribution. The sigma face is a viral trend that gets its inspiration from 2000 film American Psycho — specifically Christian Bale’s murderous character Patrick Bateman. In the system of Greek. omega: [noun] the 24th and last letter of the Greek alphabet — see Alphabet Table. Sigma Female Meaning. All Free. It is a new addition to the personality hierarchy dominated by alpha males. Recommended reads: Sigma Personality: What It Is, Meaning & Main Signs; 15 Surprising Signs You’re a Heyoka Empath – And Why It’s So PowerfulAlpha male and beta male, or simply put alpha and beta, are pseudoscientific terms for men derived from the designation for alpha and beta animals in ethology. Meaning of sugma. What does SIGMA mean? A Simple Guide To The Slang Internet Term Everyone's Using. In order to master the techniques explained here it is vital that you undertake plenty of practice exercises so that they become second nature. A sigma is an independent loner who has no interest in fitting in or appearing cool. Beta, the successor, is second fiddle (or a software prototype not ready for market). When someone says ligma or sugma, you repeat the word followed by something like balls. Defined here in Chapter 3. What does SIGMA mean as an abbreviation? 48 popular meanings of SIGMA abbreviation: 50 Categories. Nov 18, 2023. Another term for a sigma male is a lone wolf. A series is the sum of the terms of a sequence. g. Six Sigma strategies seek to improve manufacturing quality by identifying and removing the causes of defects and minimizing variability in manufacturing and business processes. Learn more. Six Sigma (6σ) is a set of techniques and tools for process improvement. Lean Six Sigma is the smart combination of the Lean methodology focused on removing waste and optimizing flow. Confusiarch-2515 July 30, 2019, 6:39am 4. DMAIC (define, measure, analyze, improve, control): DMAIC (define, measure, analyze, improve, control) is an approach to problem-solving defined by Motorola as part of the Six Sigma management philosophy. DON'T EVER READ IT BACKWARDS. Sigma definition: The 18th letter of the Greek alphabet. Sugma is a disease were you go in to a mental state of sucking anything you see, this disease spreads fast so playing among us or SUCKING ON D-can cause Sugma. Sigma girl is a term sometimes used to refer to female creators that can make the face, and do it well. arithmetic series: An arithmetic series is the sum of an arithmetic sequence, a sequence with a common difference between each two consecutive terms. The term sigma female describes strong, independent, confident, and charming women. Sigma Bond: This type of covalent bond is formed by the axial overlapping of half-filled atomic orbitals. One of the most powerful traits of a sigma female is her charisma and confidence. “If. Ὀδυσσεύς. It is often used in wordplay jokes, where the punchline relies on a play of words that sound like a vulgar. It is believed that sigmas are admired by individuals who value social rankings, such. the 18th letter in the Greek alphabet (Σ, σ, or, when final, ς), a consonant, transliterated as S. . They are known to be successful, good-looking, dominant, and influential but prefer to operate as lone wolves. Alpha symbol is used to denote many things including absorption factor, area, angles and coefficients. Ipsumous-1440 July 30, 2019, 6:37am 3. , updog or deez nuts. A sigma factor. The Six Sigma name and concept are rooted in statistics. While the alpha male quantifies himself on his high position in the social hierarchy, a sigma male prefers to forego the social hierarchy and need for external validation altogether and pursue internal strength instead. We use the metric, Defects per Million Opportunities, or DPMO, to. She is driven, ambitious, and. While it. x is the first number in the set. This is a jewel that induces some certainties about one's life but also numerous questions. It often used with the inverting input of Op Amps as each resistor value controls the weighting value of gain for each input. at the highest level of the special levels of achievement in a person's studies at a US college…. Be sure to LIKE, SUBSCRIBE, and RING THE BELL! Turn on reminders for the channel so you don't miss live episodes of 'The Pregame' right here on my YouTube ch. The term “Sigma Male” is a reference to the Greek alphabet, which is a tool used to describe the hierarchy of masculinity. what all 10 year olds think they are. /sigmac -t <target> -c <path to configuration file > <path to the rule>. The difference is: she has no interest in leading a large clique. Intelligent, practical, logical, realistic, highly self-aware, yet modest, and shy are traits or characteristics seen in delta females. He’s extremely introverted. 4 parts per million (PPM). How to use summa cum laude in a sentence. Friend B: Dooma who? Friend A: Doo-ma balls fit in ya mouth? 😂. Explaining Sigma’s Role in Statistical Significance. It is similar to “Alpha Male” “ Beta Male ” and “ Omega Male ”, which are other popular phrases used to refer to different types of masculinity in people. Capable of leadership. However, without some definition of the values of x, this is pretty meaningless. 1. Reduces waste and defects. 1. Sigma (Σ) is the 18th letter of the Greek alphabet and is used to represent the voiceless postalveolar fricative sound, similar to ‘s’ in English. (spatial databases) The select operation. . Six Sigma at many organizations simply means a measure of quality that strives for near perfection. A level of 6-sigma represents a high level of quality, with 3. personality: [noun] the quality or state of being a person. Pronunciation. Sigma (Summation) Notation. See examples of SIGMA used in a sentence. This is where you need to put your thinking caps on because 5-sigma doesn’t mean there’s a 1 in 3. SmithyLK. The atomic orbitals overlap along the inter-nuclear axis and involve end-to-end or head-on overlap. Definition of sugma in the Definitions. In mathematics, the uppercase Sigma (Σ) is often used to depict the summation of a sequence of numbers, while the lowercase Sigma (σ) refers to. A person who greatly appreciates privacy. Summation Notation. letter: [noun] a symbol usually written or printed representing a speech sound and constituting a unit of an alphabet. Sigma males are self-sufficient. A variant of the deadly disease sugma, which itself is a variant of the ligma disease. 5-sigma was a useful threshold in this case because that was a clear enough signal to verify that the decay modes matched the predictions. Sigma symbol is math is a Greek alphabet called "∑" and is read as "sigma". Almost every single one of Sugoma's videos have some correlation with Among Us somehow. Sigma Sigma Sigma (ΣΣΣ), also known as Tri Sigma, is a national American women's sorority. She makes her own rules and focuses on her life. This is a random variable (it could take any of , typically, many values). tangent of a value or expression. ( ‿ ) SYMBL. Reduces variation. R chart: An r chart is a control chart statisticians use to monitor the process standard deviation of a dataset. A sigma female usually doesn’t realize how much certain people are fearful of her. Brown,. A sigma value is a description of how far a sample or point of data is away from its mean, expressed in standard deviations usually with the Greek letter σ or lower case s. hebräisch sạmęḵ. Motorola engineers discovered that many of their operations were. 3. 9 percent of results must fall within six standard. Ligma (Lesoil Institolis Genis Madic Amur) and Sugma (Sluzp Untes Genis Madic Amut) are deadly diseases and have killed at least 5 people on the world by now. Often mathematical formulae require the addition of many variables Summation or sigma notation is a convenient and simple form of shorthand used to give a concise expression for a sum of the values of a variable. This is because the standard deviation from the mean is smaller than from any other point. Sigma males are also very relaxed with people that are close and familiar to them. So, when is a particular data point — or. 7 percent. net dictionary. Friend B: Who’s there? Friend A: Dooma. In chemistry, sigma bonds ( σ bonds) are the strongest type of covalent chemical bond. Six Sigma is a quality-control program developed in 1986 by Motorola that emphasizes cycle-time improvement and the reduction of manufacturing defects to a level of no more than 3. Sigma female is the term to describe a woman that follows her own set of rules and is not a follower. The Standard Deviation is a measure of how spread out numbers are. Colors are said to mean different things about the person or object. The sigma meme has been frequently used as a reaction image and has also been used in a variety of other contexts. She makes her own rules and focuses on her life. All the bonds in ethane are σ bonds. You can also. The 18th letter of the Greek alphabet. 1. ligma (uncountable) (chiefly Internet, humorous) A fictional ostensible disease coined to sound similar to "lick my balls" (used to trick a person into asking the meaning). What is a sigma female? According to the Urban Dictionary, a sigma female is a woman similar to an alpha woman. -As reported by Pigma Dengar. If you are not six sigma trained then this book is no good for you unless you are a maths genius. ABBREVIATIONS; ANAGRAMS; BIOGRAPHIES; CALCULATORS; CONVERSIONS; DEFINITIONS;. In statistics terms the difference between mean and sigma. Symbol Meaning. Whereas alpha males are often seen as more domineering and. BOFA, LIGMA, and E-TMA. Learn more. In the empirical sciences, the so-called three-sigma rule of thumb (or 3 σ rule) expresses a conventional heuristic that nearly all values are taken to lie within three standard deviations of the mean, and thus it is empirically useful to treat 99. SIGMA. The Sigma male is unafraid of risks. They can command attention in social gatherings, attract sexual partners, and avoid bowing down to authority. Langston Taylor, Leonard F. If you doubt yourself as a sigma INFJ, then you will most likely spend a lot of time alone and resent people who give you their opinions and suggestions about how you should act. Sigma female is the term to describe a woman that follows her own set of rules and is not a follower. Sigma bonds are a result of the head-to-head overlapping of atomic orbitals whereas pi bonds are formed by the lateral overlap of two atomic orbitals. Unlike full-on rebels, sigma males don’t have a problem breaking a few rules or taking some well-calculated risks if it serves their person. Sigma ( / ˈsɪɡmə / SIG-mə; [1] uppercase Σ, lowercase σ, lowercase in word-final position ς; Greek: σίγμα) is the eighteenth letter of the Greek alphabet. Sigma males are more comfortable with themselves than they are with others. Two sigmas above or below would include about 95 percent of the data, and three sigmas would include 99. 6. In this unrelated function, it is a continuation of the old letter digamma (originally Ϝ, cursive form ), which had served as a numeral. Two-sigma includes 95 percent and three-sigma includes 99. But as of late, it's taken on a new identity thanks to TikTok. Six Sigma (6σ) is a set of techniques and tools for process improvement. The larger the Sigma, the more dispersed the data will be. Sigma male definition FAQs. It is used to indicate that. Delta Male Personality. Some key traits of the sigma male personality include: Independence and self-reliance. Keep your inner circle small. When people not in on the joke ask “What is. Social commentators and members of the manosphere have different. Then the person playing the joke says “ (enter one of the above) balls. This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: SIGMA . Sigma male is actually a modern slang term that is used recently. between 8 and 12. However, in recent times, a new category known as sigma males has come into popularity. The term refers to the amount of variability in a given set of data: whether the data points are all clustered together, or very spread outGamma Male vs Sigma Male. 5 million. One can easily imagine that typically many different $Sigma$-algebras exist for the same signature $Sigma$. , used commonly in English in various scientific contexts. Learn more. A larger sigma indicates a greater variability or spread, while a smaller sigma suggests data points are closely clustered around the mean. An extremely rare antibiotic-resistant strain of Ligma virus. Sigma Rules memes are originated from the term sigma male that is used for a self reliant and independent men who becomes successful in life and lives his life with his own rules, Basically Sigma rule is a rule made by a sigma male who listens to himself only. The frame size on a lens tells you what kind of camera the lens was intended for. Sigma (Σ, σ) is the eighteenth letter of the Greek alphabet. Statistics The standard deviation of a given probability. They might make drastic adjustments, such as disappearing, to pursue their dream. “Sigma” is a personality archetype that was created to contrast alpha and beta. 1. sigma - WordReference English dictionary, questions, discussion and forums. Here's what being a sigma male entails. plural sigmas. Engineering, Construction, General Construction. Sigma males can be compared to lone wolves since they love independence and are exceedingly humble. " Summa cum laude is the highest distinction of. (chiefly Internet, humorous) An interjection designed to sound similar to “suck my” (especially used to trick a person into asking the meaning). They work out ways to avoid drama and attention, keeping themselves private and, of course, mysterious…. Sigma Alpha Pi stands for Success, Action, and Purpose. In the Greek numeral system, the Sigma symbol denotes the value of 200. John Wick has often. The main objective is to maximize the benefits for customers. But Σ can do more powerful things than that!. For example, a sigma-algebra is a collection of sets closed under countable union and a sigma-compact topological. Capricorn guys don’t like to exert their dominance over others, nor do they want others to follow their example. Greek Letter Sigma (Σίγμα - Σ) The letter "s" came from the Semitic alphabet, where it was once shaped like latin "W". 1. A very self-reliant person, kinda like an Alpha except higher. Unlock your family history in the largest database of last names. However, the primary cause of using the word is to get a specific response from the other person you’re saying it to, whether that’s online or in person. (Fluorine F 18 ISO-1, NCI Thesaurus) To allow cell-cycle progression, estrogens stimulate production of Efp, which binds and ubiquinates 14-3-3s. ρ rho, pronounced “roe” = linear correlation coefficient of a population. What is Sigma? Sigma is the 18th letter of the Greek alphabet and is equivalent to our letter 'S'. It tells us that we are summing something. Independence is as vital as air to sigma females. It represents the five phases that make up the process: Define the problem, improvement activity, opportunity for improvement, the project goals, and customer (internal and external) requirements. I’m much more than a sigma male. They get along well with alphas or sigma alphas. Are you capable of seeing auras around other people or animals? Auras are colorful energetic fields. Sigma Alpha Pi are the Greek letters that the NSLS. Noun [ edit] sigma male (plural sigma males) ( Internet slang, neologism) A self-reliant and assertive male who occupies a position outside a social or group hierarchy; a lone wolf or maverick . You are learning the word sugma in Nepali language. Sigma males. Beside numbers, other types of values can be summed as well: functions, vectors, matrices, polynomials and, in general, elements of any type of mathematical objects on which an operation denoted. They are the men you would call “lone wolves. However, it is a known fact that in a normal distribution the points tend to be around the mean. The uppercase use of sigma denotes a summation while the lowercase represents a measure of variation. Higher sigma values mean that the discovery is less and less likely to be accidentally a mistake or ‘random chance’. all data points between 6 and 14. Updated: March 23, 2023 by Ken Feldman. Lean six-sigma is well defined as a process improvement methodology that is mainly used to remove waste, and inefficiency, eliminate hindrances and provide better customer requirements. This method is commonly used in Signal Delta ADC's so that the. the 18th letter in the Greek alphabet (Σ, σ, or, when final, ς), a consonant, transliterated as S. Delta Female. The small letter sigma (σ) is used to represent standard deviation. While sigma males share some traits with alpha and beta. 2. They possess many of the alpha characteristics — with a twist. The percentage of data points that would lie within. It would help if you would at least tell us what page that was on so we could check exactly what it said!. 110. the 18th letter of the Greek alphabet. Standard Deviation (also known as Sigma or σ) determines the spread around this mean/central tendency. Standard Deviation (also known as Sigma or σ) determines the spread around this mean/central tendency. Sigma in Summation. Collins English Dictionary. Sigma is the 18th letter of the Greek alphabet. Search for more names by meaning . 3. 8. The biggest difference between the two Sigma levels is the degree of accuracy between outcomes. Deploying all rules at once without testing is a recipe for disaster. The series 4 + 8 + 12 + 16 + 20 + 24 4 + 8 + 12 + 16 + 20 + 24 can be expressed as ∑n=16 4n ∑ n = 1 6 4 n . See examples of SIGMA used in a sentence. SIGMA meaning: the 18th letter of the Greek alphabet Σ or σ or ς. What is a 'sigma male,' exactly? We're glad you asked. Sigma males are fiercely independent, preferring to go at things alone and relying on their own skills and capabilities, rather than turning to others for support. Sigma means Respect, and care about someone Not hurt their feelings. Brown,. Sugma is a name that evokes logical reasoning. Meaning of sigma bond. She’s Independent. A more internally-focused sibling to the alpha male. Sigma is a cross between them. According to the internet, just like a man can be alpha or beta, a man can also be sigma. Some common similarities between sigma and alpha males include: Self confidence is at a high level. In mathematical analysis and in probability theory, a σ-algebra (also σ-field) on a set X is a nonempty collection Σ of subsets of X closed under complement, countable unions, and countable intersections. Hence, a business must understand the needs of their customers and the drivers of sales. net dictionary. The standard deviation formula calculates the standard deviation of population data. First, there must be some indices associated with each sum- something like $sum_{m= 1}^M sum_{n= 1}^N$- and the quantity inside must depend on n and m. The term sigma female describes strong, independent, confident, and charming women. Instead, they reach inward and self-validate. sigma meaning: 1. Learn more. The faster-than-light. Far-right activist and writer, Theodore Robert Beale, aka, Vox Day, is believed to be the one who first coined the term. • 3 yr. A – Art. There are five main principles of Six Sigma: 1. In Gematria it has the value of 200. sigma ý nghĩa, định nghĩa, sigma là gì: 1. An important part of your life will most likely be devoted to finding pleasure. They're also able to self-soothe when confronted by stress and life challenges. Ligma and sugma are used as a setup for a popular joke among kids. In India there is a place called Sugma and there is a project we’re scientists are trying to dig to the bottom of the earth it’s called the “Big Dig” while digging they have found this radioactive. inverse sine (arcsine) of a value or expression. the symbol Σ, indicating summation of the numbers or. Noun [ edit] sigma m or f ( invariable) sigma, specifically : the name of the Greek-script letter Σ / σ, ς. 3. It requires establishing quality standards according to the market or customer demands. It’s just a joke that only people with a little mathematical education will be able to get. Other times, the phrase sigma girl is used to describe a stoic woman that embodies sigma tendencies. 3 benefits of Six Sigma. . Perhaps reminiscent of Greek terms like sigma, omega, tagma, etc. Sigma is a term used in masculinist subcultures to describe a man who is highly independent and self-reliant. Five-sigma corresponds to a p-value, or probability, of 3×10 -7, or about 1 in 3. Ninja is the alias of Richard Tyler Blevins, a professional gamer and popular streamer of the online video game Fortnite. Stage 3 (commonly referred to as E-TMA) is incredibly uncommon due to the Ligma's astronomical fatality rates (99. Males who give thought to social rankings (such as incels and overly. Definition of sugma in the Definitions. Posses leadership qualities. Sigma males are listeners while alpha males are talkers. Sigma Face, also known as Sigma Male Face, Sigma Meme Face, or Sigma Girl Face, refers to a TikTok trend in which people replicate a memorable facial express. Sigma is a term used in masculinist subcultures to describe a man who is highly independent and self-reliant. Here are 7 sigma male traits that will help build a picture of what this term means in reality. The sigma face appears to be TikTok’s newest favourite expression, but what does the trending expression actually mean, know its meaning and tutorial explained. Subscribe: $29. Words used by ni🅱️🅱️as who watch memes. A set in a measure space X is said to have σ -finite measure if it is a countable union of sets with finite measure. Here are the formulas for a population mean and the sample mean. When used at the end of a word (when the word is not all caps), the final form (ς) is used, e. They tend to be lone wolves, preferring to operate independently rather than as part of a group. After the virality of "ligma" in 2018, multiple variants emerged like Sugma ("suck my"), Bofa ("both of"), Sugondese ("suck on these") and the Indonesian city Grabahan ("grab a hand"). They Don’t Follow Trends. 87%), and thusly has never been observed in laboratory. They are believed to have started out as alpha females who. , on January 9, 1914, by three young African-American male students with nine other Howard students as charter members. These lens elements reduce chromatic aberration and other lens aberrations. In simpler terms, it is a measure of how much the data deviates from the mean or average. SIGMA. Ligma is a fictional disease associated with a death hoax orchestrated by Instagram user ninja_hater that claimed Fortnite streamer Ninja had passed away after contracting the disease. In summation notation, the sigma meaning refers to the sum, or addition, of multiple. ”. The response is something along the lines of “ligma balls,” with ligma meant to sound. This holds even in the case of algebraic specifications, which can restrict the set of admissable $Sigma$-algebras by additional axioms. In Ὀδυσσεύς , for example, the two lowercase sigmas in the center of the name are distinct from the word. Symbol: σ, Name of the character: greek small letter sigma, Unicode number for the sign: U+03C3, the icon is included in the block: Greek and Coptic. If An are countably infinitely many subsets from the sigma-field, then. However, I have now seen another way of using the sigma function: $$sum_{k=2}^4 k^2 = 2^2 + 3^2 + 4^2$$ The former example illustrates how I've learned to use it, the value above the sigma function denoting the number of terms. ( mathematics) the symbol Σ, used to indicate summation of a set or series. LIGMA (Loose Internal Gene Mi-Asintits) is the second stage of BOFA (Biologically Offset Farkwonian Asintits). Generally speaking, sigma is the 18th letter of the Greek alphabet. The sigma male has a high status in the eyes of others. 1) She’s a charismatic, natural-born leader. The sigma personality type – used to describe men and women – has some alpha qualities, but they’re deeper thinking and more emotional. It’s a methodology that is well rooted in mathematics and statistics. the 18th letter of the Greek alphabet 2. Dominance, but not in a traditional sense. For example, the sum of J first whole numbers can be represented in the following manner: Í E á Ü @ 5 Sigma in Statistical Analysis: What You Need to Know. Sigma, often associated with the term “ sigma male ,” is a slang term originating from masculinist subcultures. To make it easier to write down these lengthy sums, we look at some new notation here, called sigma notation (also known as summation. This page is about the meaning, origin and characteristic of the symbol, emblem, seal, sign, logo or flag: Sigma. What Does Sigma Mean From a Girl? When a girl uses the term sigma, it is typically used in the same way as guys use it. On this chart of a 'normal' distribution, showing the classic 'bell curve' shape, the mean (or average) is the vertical line at the center, and the vertical lines to either side. Six Sigma is a data-driven methodology that provides tools and techniques to define and evaluate each step of a process. The latter example illustrates the other definition, where the value above denotes the last value. the 18th letter of the Greek alphabet 2. 2. , the name Sigma means "Man of the casino". A sigma male is someone who is successful but doesn’t fit into traditional social hierarchies.