defrauder

NOUN
9 LETTERS · 3 SYLLABLES · STARTS WITH D

defrauder is a valid 9-letter word worth 14 points in Scrabble and 15 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
D2E1F4R1A1U1D2E1R1
2 + 1 + 4 + 1 + 1 + 1 + 2 + 1 + 1 =14 PTS
DOUBLE WORD → 28TRIPLE WORD → 42
MEANING

What does defrauder mean?