Is “Tic” a Scrabble word?
Yes
TIC
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 Tic
/tɪk/
noun
1.A sudden, nonrhythmic motor movement or vocalization.
2.(by extension) Something that is done or produced habitually or characteristically.
3.(abbreviation) ticket
verb
1.To exhibit a tic; to undergo a sudden, semi-voluntary muscle movement.