zip up

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zip up (third-person singular simple present zips up, present participle zipping up, simple past and past participle zipped up)

1. To close with a zip fastener.

   Always check if you've zipped up your fly before you go out.

2. (idiomatic, transitive or intransitive) 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.

3. To convert a computer file into a smaller package.

• do up
• zip

• undo
• unzip
• zip down

• zip up one's lip

• zip-up