zip (v.1) Look up zip at Dictionary.com
"move rapidly," 1852, of echoic origin. Meaning "close with a zipper" is from 1932. Related: Zipped; zipping.
ZIP (adj.) Look up ZIP at Dictionary.com
1963, in U.S. postal ZIP code, an acronym for Zone Improvement Plan, no doubt chosen with conscious echo of zip (v.1).
zip (n.2) Look up zip at Dictionary.com
"zero," 1900, student slang for a grade of zero on a test, etc.; of unknown origin; compare zilch.
zip (v.2) Look up zip at Dictionary.com
"to close or fasten by means of a zipper," 1932, back-formation from zipper (n.). Related: Zipped; zipping; zipless.
zip (n.1) Look up zip at Dictionary.com
"sound of something moving rapidly," 1875, imitative. Zip gun "homemade pistol" first recorded 1950.