Sigma
5 lettersnounmoderateUpdated June 2026
Definition
The Greek letter σ, used in mathematics and science to represent summation.
“The formula uses sigma to indicate the sum of all values.”
Pronunciation
IPA
/ˈsɪɡmə/
Syllables
sig·ma
Related Words
Word Game Tips
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Wordle
Uncommon word with vowel-consonant pattern.
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Scrabble
Worth 8 points; good for using uncommon letters.
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