WordNet (r) 3.0 (2006):

zip up
    v 1: close with a zipper; "Zip up your jacket--it's cold" [syn:
         zip up, zipper, zip] [ant: unzip]

Moby Thesaurus II by Grady Ward, 1.0:

63 Moby Thesaurus words for "zip up":
   animate, arouse, bang, bar, barricade, batten, batten down, bolt,
   button, button up, choke, choke off, clap, close, close up,
   constrict, contain, contract, cover, dynamize, electrify, energize,
   enliven, exhilarate, fasten, fire, fold, fold up, galvanize,
   hearten, inflame, invigorate, jazz up, key, kindle, latch, liven,
   lock, lock out, lock up, occlude, padlock, pep up, perk up, plumb,
   quicken, rouse, seal, seal off, seal up, secure, shut,
   shut the door, shut up, slam, snap, snap up, squeeze shut,
   stimulate, strangle, vitalize, warm, zipper