Is OIS a valid Scrabble word?
YES — OIS is a valid Scrabble word 3 points
Scrabble® and Words With Friends® points for OIS
OIS is a valid Scrabble US/CAN word worth 3 points:
O1I1S1
OIS is valid in Scrabble UK (World) —
O1I1S1
OIS is not valid in Words With Friends.