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zip (v.1)

"move rapidly," 1852, of echoic origin. Meaning "close with a zipper" is from 1932. Related: Zipped; zipping.

zip (v.2)

"to close or fasten by means of a zipper," 1932, back-formation from zipper (n.). Related: Zipped; zipping; zipless.

ZIP (adj.)

1963, in U.S. postal ZIP code, an acronym for Zone Improvement Plan, no doubt chosen with conscious echo of zip (v.1). Alternative post code is attested by 1967 in Australia.

zip (n.1)

"sound of something moving rapidly," 1875, imitative. Zip gun "homemade pistol" is attested by 1950.

zip (n.2)

"zero," 1900, student slang for a grade of zero on a test, etc.; of unknown origin; compare zilch.

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Definitions of zip from WordNet
1
zip (n.)
a quantity of no importance;
Synonyms: nothing / nil / nix / nada / null / aught / cipher / cypher / goose egg / naught / zero / zilch / zippo
zip (n.)
a code of letters and digits added to a postal address to aid in the sorting of mail;
Synonyms: ZIP code / postcode / postal code
zip (n.)
forceful exertion;
he's full of zip
Synonyms: energy / vigor / vigour
zip (n.)
a fastener for locking together two toothed edges by means of a sliding tab;
Synonyms: slide fastener / zipper / zip fastener
2
zip (v.)
close with a zipper;
Synonyms: zip up / zipper
zip (v.)
move very fast;
The runner zipped past us at breakneck speed
Synonyms: travel rapidly / speed / hurry
From wordnet.princeton.edu