Is ROST a valid Scrabble word?
YES — ROST is a valid Scrabble word 4 points
Scrabble® and Words With Friends® points for ROST
ROST is a valid Scrabble US/CAN word worth 4 points:
R1O1S1T1
ROST is valid in Scrabble UK (World) —
R1O1S1T1
ROST is not valid in Words With Friends.