roller-blind shutter

20 LETTERS · STARTS WITH R

roller-blind shutter is a valid 20-letter word worth 24 points in Scrabble and 29 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

R1O1L1L1E1R1-0B3L1I1N1D2S1H4U1T1T1E1R1

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

DOUBLE WORD → 48TRIPLE WORD → 72

MEANING

What does roller-blind shutter mean?