Noun

• S: (n) nothing, nil, nix, nada, null, aught, cipher, cypher, goose egg, naught, zero, zilch, zip, zippo (a quantity of no importance) "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"
• S: (n) ZIP code, ZIP, postcode, postal code (a code of letters and digits added to a postal address to aid in the sorting of mail)
• S: (n) energy, vigor, vigour, zip (forceful exertion) "he plays tennis with great energy"; "he's full of zip"
• S: (n) slide fastener, zip, zipper, zip fastener (a fastener for locking together two toothed edges by means of a sliding tab)

Verb

• S: (v) zip up, zipper, zip (close with a zipper) "Zip up your jacket--it's cold"
• S: (v) travel rapidly, speed, hurry, zip (move very fast) "The runner zipped past us at breakneck speed"