silent movie

NOUN
12 LETTERS · STARTS WITH S

silent movie is a valid 12-letter word worth 16 points in Scrabble and 20 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
S1I1L1E1N1T1M3O1V4I1E1
1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 4 + 1 + 1 =16 PTS
DOUBLE WORD → 32TRIPLE WORD → 48
MEANING

What does silent movie mean?