- to unfasten the zip of (a garment) or (of a zip or garment with a zip) to become unfastened: her skirt unzipped as she sat down
- (transitive) to decompress (a file) that had previously been zipped
WordReference Random House Learner's Dictionary of American English © 2026
un•zip /ʌnˈzɪp/USA pronunciation
v., -zipped, -zip•ping.
WordReference Random House Unabridged Dictionary of American English © 2026- to (cause to) be opened or unfastened by or as if by means of a zipper: [~ + object]She had trouble unzipping the dress.[no object]The zipper won't unzip.
un•zip
(un zip′),USA pronunciation v., -zipped, -zip•ping.
v.t.
v.i.
v.t.
- to open the zipper of.
v.i.
- to become unzipped.
- un-2 + zip2 1935–40
Collins Concise English Dictionary © HarperCollins Publishers::
unzip /ʌnˈzɪp/ vb ( -zips, -zipping, -zipped)
'unzip' also found in these entries (note: many are not synonyms or translations):