WordNet (r) 3.0 (2006):

wrap up
    v 1: arrange or fold as a cover or protection; "wrap the baby
         before taking her out"; "Wrap the present" [syn: wrap,
         wrap up] [ant: undo, unwrap]
    2: finish a task completely; "I finally got through this
       homework assignment" [syn: get through, wrap up, finish
       off, mop up, polish off, clear up, finish up]
    3: form a cylinder by rolling; "roll up a banner" [syn: roll
       up, wrap up] [ant: unfurl, unroll]
    4: clothe, as if for protection from the elements; "cover your
       head!" [syn: cover, wrap up]

Moby Thesaurus II by Grady Ward, 1.0:

109 Moby Thesaurus words for "wrap up":
   apparel, array, attire, bale, band, bandage, bedeck, bedrape, belt,
   bend, bind, bind up, box, brace, bundle, bundle up, button up, cap,
   carry to completion, case, chain, cinch, clean up, climax,
   close out, close up, clothe, complete, conclude, crate, crown,
   culminate, deck, determine, dight, do up, drape, dress, dud, embox,
   embrace, encapsulate, encase, enclothe, end, endue, enfold, enrobe,
   enshroud, enswathe, envelop, enwrap, finalize, finish, finish off,
   finish up, garb, garment, get done, get it over, get through,
   get through with, gird, girdle, girt, girth, habilitate, halt, hap,
   invest, lace, lap, lash, leash, mop up, muffle, muffle up, pack,
   package, parcel, perfect, rag out, raiment, robe, roll, roll up,
   rope, round out, sheathe, shroud, smother, splice, strap, surround,
   swaddle, swathe, terminate, tie, tie up, tire, top off, top out,
   truss, truss up, ultimate, wind up, wire, wrap, wrap about