contradict itself

17 LETTERS · STARTS WITH C

contradict itself is a valid 17-letter word worth 24 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3O1N1T1R1A1D2I1C3T1I1T1S1E1L1F4

3 + 1 + 1 + 1 + 1 + 1 + 2 + 1 + 3 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 4 =24 PTS

DOUBLE WORD → 48TRIPLE WORD → 72

MEANING

What does contradict itself mean?