phantasm

NOUN /fæntæzəm/
8 LETTERS · 2 SYLLABLES · STARTS WITH P

phantasm is a valid 8-letter word worth 15 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3H4A1N1T1A1S1M3
3 + 4 + 1 + 1 + 1 + 1 + 1 + 3 =15 PTS
DOUBLE WORD → 30TRIPLE WORD → 45
MEANING

What does phantasm mean?