disallow

VERB /,dɪsə'laʊ/
8 LETTERS · 3 SYLLABLES · STARTS WITH D

disallow is a valid 8-letter word worth 12 points in Scrabble and 14 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
D2I1S1A1L1L1O1W4
2 + 1 + 1 + 1 + 1 + 1 + 1 + 4 =12 PTS
DOUBLE WORD → 24TRIPLE WORD → 36
MEANING

What does disallow mean?