misdemeanour

NOUN /,mɪsdɪ'minər/
12 LETTERS · STARTS WITH M

misdemeanour is a valid 12-letter word worth 17 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
M3I1S1D2E1M3E1A1N1O1U1R1
3 + 1 + 1 + 2 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =17 PTS
DOUBLE WORD → 34TRIPLE WORD → 51
MEANING

What does misdemeanour mean?