[1] : WordNet (r) 2.0

zip up
     v : close with a zipper; "zip up your jacket--it's cold" syn: zipper,
          zip ant: unzip
see also:
zipper zip unzip 

[2] : 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

Ball Up >> B Words
Ball Up, definition of term: Ball Up
ball+up_pag1.html

Bang Up >> B Words
Bang Up, definition of term: Bang Up
bang+up_pag1.html

Backed Up >> B Words
Backed Up, definition of term: Backed Up
backed+up_pag1.html

Back Up >> B Words
Back Up, definition of term: Back Up
back+up_pag1.html

Ante Up >> A Words
Ante Up, definition of term: Ante Up
ante+up_pag1.html

Act Up >> A Words
Act Up, definition of term: Act Up
act+up_pag1.html