Is RIFF a valid Scrabble word?
YES — RIFF is a valid Scrabble word 10 points
Scrabble® and Words With Friends® points for RIFF
RIFF is a valid Scrabble US/CAN word worth 10 points:
R1I1F4F4
RIFF is valid in Scrabble UK (World) —
R1I1F4F4
RIFF is a valid Words With Friends word worth 10 points:
R1I1F4F4