sigma
part of speech
noun (sigma, sigmas); adjective (sigma — slang)
meaning for a pupil
1) The eighteenth letter of the Greek alphabet, written Σ (capital) and σ or ς (small). tree →
2) (maths) The capital Σ means "add up all of these" (the sum); small σ is used in statistics for standard deviation (how spread out numbers are). tree →
3) (slang, internet) Used by some young people to mean "cool", "independent" or "the best", as in "sigma male"; often a joke or meme. tree →
sense in the lessons
In maths, Σ appears in sums: Σ of 1 to 4 means 1 + 2 + 3 + 4 = 10. In science, Greek letters name many things. In playground and internet slang, "sigma" is a meme word for someone who goes their own way; teachers and parents often find it silly. Phrases: sigma notation, sigma male (slang), "that's so sigma" (slang).
examples
- Σ is the Greek capital letter sigma. tree →
- In maths, Σ means "add them all up". tree →
- The sum Σ from 1 to 5 equals 15. tree →
- "He didn't care what anyone thought — so sigma," joked my brother. tree →
- Small sigma σ is used to show spread in statistics. tree →
- In Greek, sigma makes an "s" sound. tree →
note
Sounds like "SIG-muh". Greek sigma = English "s". The slang meaning comes from online videos; using it seriously can sound silly, and "sigma male" ideas are not science.
Trees and pragmatics
Every meaning and example of «sigma» parsed by Mova, each sentence with its dependency tree and frames.