sigma
sigma Lexical Profile
sigma Game Scores & Validity
• noun
The eighteenth letter of the Greek alphabet (Σ, σ, ς), transliterated as 's'.
"In Greek orthography, the lowercase sigma takes a special final form when it appears at the very end of a word."
A mathematical symbol (Σ) used to denote the sum of a series, or the lowercase symbol (σ) used in statistics to represent one standard deviation from the mean.
"The physicist announced that the experimental results had reached a five-sigma level of statistical confidence."
A successful, self-reliant person, especially a man, who achieves high status while remaining independent of traditional social groups (in internet slang).
"He jokingly referred to himself as a sigma because he preferred eating lunch alone rather than networking with coworkers."
• adjective
Denoting a popular, successful, and fiercely independent person who operates outside conventional social hierarchies (in contemporary internet slang).
"The film's stoic protagonist has been widely adopted by online communities as a classic sigma archetype."
• Rhymes for sigma
Word Origin & Etymology
Borrowed via Latin from Ancient Greek σῖγμα (sigma), of Semitic origin and related to the Phoenician letter samekh, though influenced in sound by Greek σίζω (sízō, 'to hiss').