What is the meaning of zip?

noun

• A quantity of no importance.
  • usage: "it looked like nothing I had ever seen before"; "reduced to nil all the work we had done"; "we racked up a pathetic goose egg"; "it was all for naught"; "I didn't hear zilch about it"
  • synonyms: nothing, nil, nix, nada, null, aught, cipher, cypher, goose egg, naught, zero, zilch, zippo
• A code of letters and digits added to a postal address to aid in the sorting of mail.
  • synonyms: ZIP code, postcode, postal code
• Forceful exertion.
  • usage: "he plays tennis with great energy"; "he's full of zip"
  • synonyms: energy, vigor, vigour
• A fastener for locking together two toothed edges by means of a sliding tab.
  • synonyms: slide fastener, zipper, zip fastener

verb

• Close with a zipper.
  • usage: "Zip up your jacket-it's cold"
  • synonyms: zip up, zipper
• Move very fast.
  • usage: "The runner zipped past us at breakneck speed"
  • synonyms: travel rapidly, speed, hurry