laugh at

VERB
8 LETTERS · STARTS WITH L

laugh at is a valid 8-letter word worth 11 points in Scrabble and 13 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
L1A1U1G2H4A1T1
1 + 1 + 1 + 2 + 4 + 0 + 1 + 1 =11 PTS
DOUBLE WORD → 22TRIPLE WORD → 33
MEANING

What does laugh at mean?