Source : WordNet®

zip
     v 1: close with a zipper; "Zip up your jacket--it's cold" [syn: {zip
          up}, {zipper}] [ant: {unzip}]
     2: move very fast; "The runner zipped past us at breakneck
        speed" [syn: {travel rapidly}, {speed}, {hurry}]
     [also: {zipping}, {zipped}]

zip
     n 1: 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" [syn: {nothing},
           {nil}, {nix}, {nada}, {null}, {aught}, {cipher}, {cypher},
           {goose egg}, {naught}, {zero}, {zilch}]
     2: a fastener for locking together two toothed edges by means
        of a sliding tab [syn: {slide fastener}, {zipper}, {zip-fastener}]
     [also: {zipping}, {zipped}]

zipped
     See {zip}