Is PROB a valid Scrabble word?
YES — PROB is a valid Scrabble word 8 points
Scrabble® and Words With Friends® points for PROB
PROB is a valid Scrabble US/CAN word worth 8 points:
P3R1O1B3
PROB is valid in Scrabble UK (World) —
P3R1O1B3
PROB is not valid in Words With Friends.