Definition of PHI

phi

Meanings

Plural: phis

Noun

  • the 21st letter of the Greek alphabet
  • Φ, the 21st letter of the Euclidean and modern Greek alphabet, usually romanized as "ph".
  • The golden ratio.
  • A visual illusion whereby a sequential pattern of lights produces a false sense of motion.

Origin / Etymology

From Late Latin phi, from Ancient Greek φεῖ (pheî).

Scrabble Score: 8

phi is a valid Scrabble (US) TWL word
phi is a valid Scrabble Word in Merriam-Webster MW Dictionary
phi is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 8

phi is a valid Words With Friends word