# Definitions for Sigmaˈsɪg məsig·ma

### Princeton's WordNetRate this definition:3.3 / 3 votes

1. sigmanoun

the 18th letter of the Greek alphabet

### WiktionaryRate this definition:4.0 / 2 votes

1. sigmanoun

The name for the eighteenth letter of the Classical and Modern Greek, the nineteenth letter of Old and Ancient.

2. sigmanoun

The symbol u03A3, used to indicate summation of a set or series.

3. sigmanoun

The symbol u03C3, used to indicate one standard deviation from the mean, particularly in a normal distribution.

### WikipediaRate this definition:0.0 / 0 votes

1. Sigma

Sigma (; uppercase Σ, lowercase σ, lowercase in word-final position ς; Greek: σίγμα) is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase Σ is used as an operator for summation. When used at the end of a letter-case word (one that does not use all caps), the final form (ς) is used. In Ὀδυσσεύς (Odysseus), for example, the two lowercase sigmas (σ) in the center of the name are distinct from the word-final sigma (ς) at the end. The Latin letter S derives from sigma while the Cyrillic letter Es derives from a lunate form of this letter.

### ChatGPTRate this definition:0.0 / 0 votes

1. sigma

Sigma (σ) is a mathematical symbol used to represent various concepts in different academic fields. 1) In mathematics and statistics, it is commonly used to represent the standard deviation of a set of numbers. 2) In calculus, sigma represents the summation notation indicating that a series of numbers needs to be added together. 3) In physics, it could represent electrical conductivity, while in economics, it could stand for elasticity. 4) Sigma is also a letter in the Greek alphabet. Always, the meaning of Sigma depends on the context in which it is used.

### Webster DictionaryRate this definition:2.0 / 1 vote

1. Sigmanoun

the Greek letter /, /, or / (English S, or s). It originally had the form of the English C

2. Etymology: [L., from Gr. , .]

### WikidataRate this definition:0.0 / 0 votes

1. Sigma

Sigma is the eighteenth letter of the Greek alphabet, and carries the 'S' sound. In the system of Greek numerals it has a value of 200. When used at the end of a word, and the word is not all upper case, the final form is used, e.g. Ὀδυσσεύς – note the two sigmas in the center of the name, and the word-final sigma at the end.

### Chambers 20th Century DictionaryRate this definition:3.0 / 1 vote

1. Sigma

sig′ma, n. the Greek letter corresponding to our s—written Σ (capital), σ (small initial) or ς (small final).—adjs. Sig′mate, Sigmat′ic.—ns. Sigmā′tion, the adding of s at the end of a word or syllable; Sig′matism, repetition of s or the s-sound: defective pronunciation of this sound.—adjs. Sig′moid, -al, formed like s.

### Suggested ResourcesRate this definition:3.0 / 1 vote

1. sigma

The sigma symbol -- In this Symbols.com article you will learn about the meaning of the sigma symbol and its characteristic.

2. sigma

Song lyrics by sigma -- Explore a large variety of song lyrics performed by sigma on the Lyrics.com website.

### Numerology

1. Chaldean Numerology

The numerical value of Sigma in Chaldean Numerology is: 3

2. Pythagorean Numerology

The numerical value of Sigma in Pythagorean Numerology is: 4

### Examples of Sigma in a Sentence

1. I think folks need to figure out how they sell being part of Trump's Washington without giving up the perception that they are still willing to fight the sigma of Washington and for their constituents.

2. These fraternities are places that us as hip-hop artists, we come and do amazing shows for these fraternities, like I just did Texas Tech, I just did Texas AM, Delta Chi, Sigma Chi, and those guys were great. And I've done a show actually at Oklahoma last year, so to see that that chapter feels that type of way toward the black race, it hurts, man. It sucks.

3. Im a sussy baka, so are you. Amongus Imposter, i suspect you. I say im mewing. you say its you, I am a sigma, skibidi toilet too.

4. Sigma Alpha Mu's values and standards of conduct were violated by the actions of those members whose behavior was abhorrent.

5. Allowing drivers to occasionally work more hours will reduce the number of trucks and drivers it takes to move the same amount of fuel, right now SIGMA believes the actions the federal government has taken to be sufficient.

### Popularity rank by frequency of use

Sigma#1#5459#10000

## Translations for Sigma

• سيغما
• sigma
• sigma
• sigma
• Sigma
• σίγμα
• sigmo
• sigma
• سیگما
• sigma
• sigma
• saidis
• सिग्मा
• szigma
• sigma
• sigma
• sigma
• סיגמא
• シグマ
• ಸಿಗ್ಮಾ
• 시그마
• sigma
• sigma
• sigma
• sigma
• sigma
• sigma
• sigma
• сигма
• sigma
• sigma
• சிக்மா
• సిగ్మా
• sigma
• сигма
• سگما
• sigma
• sigma
• 西格玛

### Translation

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