The Collaborative International Dictionary of English v.0.48:

Enact \En*act"\, v. t. [imp. & p. p. Enacted; p. pr. & vb. n.
   Enacting.]
   1. To decree; to establish by legal and authoritative act; to
      make into a law; especially, to perform the legislative
      act with reference to (a bill) which gives it the validity
      of law.
      [1913 Webster]

   2. To act; to perform; to do; to effect. [Obs.]
      [1913 Webster]

            The king enacts more wonders than a man. --Shak.
      [1913 Webster]

   3. To act the part of; to represent; to play.
      [1913 Webster]

            I did enact Julius Caesar.            --Shak.
      [1913 Webster]

   Enacting clause, that clause of a bill which formally
      expresses the legislative sanction.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Enact \En*act"\, n.
   Purpose; determination. [Obs.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

enact
    v 1: order by virtue of superior authority; decree; "The King
         ordained the persecution and expulsion of the Jews"; "the
         legislature enacted this law in 1985" [syn: ordain,
         enact]
    2: act out; represent or perform as if in a play; "She reenacted
       what had happened earlier that day" [syn: enact, reenact,
       act out]

Moby Thesaurus II by Grady Ward, 1.0:

155 Moby Thesaurus words for "enact":
   accomplish, achieve, act, act a part, act as, act out, affect, ape,
   attain, authorize, betoken, brandish, breathe, bring about,
   bring forth, bring forward, bring into view, bring out,
   bring to notice, carry through, command, compass, complete,
   conduct, constitute, consummate, cope with, copy, create a role,
   dangle, deal with, declare lawful, decree, demonstrate, depict,
   develop, discharge, disclose, discourse, dispatch, display,
   dispose of, divulge, do, do the job, do the trick, dramatize,
   effect, effectuate, embody, enact laws, establish, evidence,
   evince, execute, exhibit, expose to view, express, fetch,
   filibuster, flaunt, flourish, formulate, fulfill, get the floor,
   give sign, give token, handle, have the floor, highlight,
   illuminate, impersonate, incarnate, indicate, institute, kill,
   knock off, legalize, legislate, legitimate, legitimatize,
   legitimize, lobby through, logroll, make, make a regulation,
   make clear, make legal, make plain, manage, manifest,
   masquerade as, materialize, mean, mime, mimic, ordain, order,
   pantomime, parade, pass, pass for, perform, personate, pigeonhole,
   play, play a part, play a role, play opposite, playact, pocket,
   polish off, portray, pose as, prescribe, present, pretend to be,
   proclaim, produce, put away, put in force, put through,
   railroad through, ratify, realize, regulate, represent, reveal,
   roll logs, roll out, rule, sanction, set forth, show, show forth,
   spotlight, succeed, support, sustain a part, table, take a part,
   take care of, take off, take the floor, token, transact, trot out,
   turn the trick, unfold, validate, veto, wave, work, work out,
   yield the floor