subverter

NOUN
9 LETTERS · 3 SYLLABLES · STARTS WITH S

subverter is a valid 9-letter word worth 14 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
S1U1B3V4E1R1T1E1R1
1 + 1 + 3 + 4 + 1 + 1 + 1 + 1 + 1 =14 PTS
DOUBLE WORD → 28TRIPLE WORD → 42
MEANING

What does subverter mean?