ZIPPER is a playable word

zipper Scrabble® Dictionary

verb
zippered, zippering, zippers
to fasten with a zipper (a fastener consisting of two rows of interlocking teeth)
26 Playable Words can be made from "ZIPPER"
   2-Letter Words (4 found)
   3-Letter Words (11 found)
   4-Letter Words (8 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)