Is “Quintet” a Scrabble word?
Yes
QUINTET
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 Quintet
/kwɪnˈtɛt/
noun
1.A composition (a type of chamber music) in five parts (typically each a singer or instrumentalist, sometimes several musicians)
2.A group of five musicians, fit to play such a piece of music together
3.Any group of five members
Synonyms: pentad