zip up verb 3zip-up adjective 1forms 3 verb3 •To close with a zip fastener.Always check if you've zipped up your fly before you go out. •To close as if with a zip fastener, especially one's mouth; to stop talking.I'll zip up my lip.I'll zip up. •To convert a computer file into a smaller package. zip-up adjective1 •Fastened by means of a zip.Ever since actor and WH cover star Alexandra Daddario slow-mo jogged onto our screens in the Baywatch reboot, we’ve been wondering what she did to look that fit in a red zip-up swimsuit. — 2023 formszipped up · zipping up · zips up
