Is SIN a valid Scrabble word?
YES — SIN is a valid Scrabble word 3 points
Scrabble® and Words With Friends® points for SIN
SIN is a valid Scrabble US/CAN word worth 3 points:
S1I1N1
SIN is valid in Scrabble UK (World) —
S1I1N1
SIN is a valid Words With Friends word worth 4 points:
S1I1N2