Is “Trio” a Scrabble word?
Yes
TRIO
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 Trio
/ˈtɹi.əʊ/
noun
1.A group of three people or things.
2.A group of three musicians.
3.A piece of music written for three musicians.
Synonyms: threesome, triad, trine, trinity, triumvirate, troika