WordNet (r) 3.0 (2006):

shut out
    v 1: prevent from entering; shut out; "The trees were shutting
         out all sunlight"; "This policy excludes people who have a
         criminal record from entering the country" [syn: exclude,
         keep out, shut out, shut] [ant: admit, include,
         let in]

Moby Thesaurus II by Grady Ward, 1.0:

106 Moby Thesaurus words for "shut out":
   ban, banned, bar, bar out, barred, barricade, blank, blanked,
   block, block out, block up, blockade, bolt, bulldoze, chock, choke,
   choke off, clobber, close, close off, close tight, close up,
   constrict, count out, cream, crowd, cut off, debar, debarred,
   defeat utterly, deny, deported, disallow, dog, ejected, embargo,
   enjoin, exclude, exclude from, excluded, exiled, expelled, forbid,
   freeze out, ignore, inhibit, interdict, jam, keep out, leave out,
   left out, liquidated, lock, lock out, not in it, not included,
   obstruct, occlude, omit, ostracize, outlaw, overbear, overwhelm,
   pack, pass over, paste, preclude, precluded, prevent, prohibit,
   prohibited, proscribe, purged, refuse, reject, relegate, repress,
   repudiate, rule out, say no to, schmear, send to Coventry, shellac,
   shroud, shut off, shut tight, skunk, smear, snow under, squeeze,
   squeeze shut, steamroller, stifle, stop up, strangle, strangulate,
   suffocate, suppress, taboo, tabooed, unscoring, whelm, whitewash,
   whitewashed, whomp, whop