vellum binder

13 LETTERS · STARTS WITH V

vellum binder is a valid 13-letter word worth 20 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

V4E1L1L1U1M3B3I1N1D2E1R1

4 + 1 + 1 + 1 + 1 + 3 + 0 + 3 + 1 + 1 + 2 + 1 + 1 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does vellum binder mean?