Is “Phi” a Scrabble word?
Yes
PHI
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Phi
/faɪ/
noun
1.Φ, the 21st letter of the Euclidean and modern Greek alphabet, usually romanized as "ph".
2.The golden ratio.
3.A visual illusion whereby a sequential pattern of lights produces a false sense of motion.