Is SISTS a valid Scrabble word?
YES — SISTS is a valid Scrabble word 5 points
Scrabble® and Words With Friends® points for SISTS
SISTS is a valid Scrabble US/CAN word worth 5 points:
S1I1S1T1S1
SISTS is valid in Scrabble UK (World) —
S1I1S1T1S1
SISTS is not valid in Words With Friends.