Is HMM a valid Scrabble word?
YES — HMM is a valid Scrabble word 10 points
Scrabble® and Words With Friends® points for HMM
HMM is a valid Scrabble US/CAN word worth 10 points:
H4M3M3
HMM is valid in Scrabble UK (World) —
H4M3M3
HMM is a valid Words With Friends word worth 11 points:
H3M4M4