liven

from WordNet (r) 3.0 (2006)

liven
    v 1: make lively; "let's liven up this room a bit" [syn:
         {enliven}, {liven}, {liven up}, {invigorate}, {animate}]
         [ant: {blunt}, {deaden}]

from The Collaborative International Dictionary of English v.0.48

liven \liven\ v. t.
   to make lively; -- sometimes used with up; as, to liven up
   the party with some music.

   Syn: enliven, liven up, make lively, invigorate, animate.
        [WordNet 1.5]

from Moby Thesaurus II by Grady Ward, 1.0

38 Moby Thesaurus words for "liven":
      activate, animate, arouse, boost, brighten, buoy up, cheer,
      dynamize, electrify, encourage, energize, enliven, exhilarate,
      fire, galvanize, give a lift, gladden, hearten, inflame, inspire,
      inspirit, invigorate, jazz up, kindle, pep up, perk up, pick up,
      quicken, rejoice, rejoice the heart, rouse, snap up, stimulate,
      stir up, vitalize, vivify, warm, zip up

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