Definition of zip verb from the Oxford Advanced American Dictionary

     

    zip

     verb
    verb
    NAmE//zɪp//
     
    Verb Forms present simple I / you / we / they zip
     
    he / she / it zips
     
    past simple zipped
     
    -ing form zipping
     
     
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  1. 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. 2 [intransitive] zip (up/together) to be fastened with a zipper The sleeping bags can zip together.
  3. 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. 4 [transitive] zip something (computing) to compress a computer file (= make it smaller) opposite unzip
  5. Phrasal Verbszip up
See the Oxford Advanced Learner's Dictionary entry: zip