Is OOS a valid Scrabble word?
YES — OOS is a valid Scrabble word 3 points
Scrabble® and Words With Friends® points for OOS
OOS is a valid Scrabble US/CAN word worth 3 points:
O1O1S1
OOS is valid in Scrabble UK (World) —
O1O1S1
OOS is not valid in Words With Friends.