Definition of sigma

Scrabble & Words with friends points


  • sigma is a valid Scrabble US word with a point value of 8
  • sigma is a valid Scrabble UK word with a point value of 8
  • sigma is a valid Words with friends word with a point value of 10

Definition of sigma


  • the 18th letter of the Greek alphabet (noun)

See definition of sigma in Merriam Webster