Is RIBA a valid Scrabble word?
YES — RIBA is a valid Scrabble word 6 points
Scrabble® and Words With Friends® points for RIBA
RIBA is a valid Scrabble US/CAN word worth 6 points:
R1I1B3A1
RIBA is valid in Scrabble UK (World) —
R1I1B3A1
RIBA is not valid in Words With Friends.