- 1 [transitive] to fasten clothes, bags, etc. with a zipper zip something I zipped and buttoned my jacket. zip somebody/yourself into something The children were safely zipped into their sleeping bags. She zipped herself into a black evening gown. zip something + adj. He zipped his case shut. compare unzip
- 2 [intransitive] zip (up/together) to be fastened with a zipper The sleeping bags can zip together.
- 3[intransitive, transitive] zip (something) + adv./prep. (informal) to move very quickly or to make something move very quickly in the direction mentioned A sports car zipped past us.
- 4 [transitive] zip something (computing) to compress a computer file (= make it smaller) opposite unzip Phrasal Verbszip up
NAmE//zɪp//Verb Forms present simple I / you / we / they zip
he / she / it zips
past simple zipped
-ing form zipping