The Collaborative International Dictionary of English v.0.48:

Legislation \Leg`is*la"tion\ (-l[=a]"sh[u^]n), n. [Cf. F.
   l['e]gislation, L. legis latio. See Legislator.]
   The act of legislating; preparation and enactment of laws;
   the laws enacted.
   [1913 Webster]

         Pythagoras joined legislation to his philosophy.
                                                  --Lyttelton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

legislation
    n 1: law enacted by a legislative body [syn: legislation,
         statute law]
    2: the act of making or enacting laws [syn: legislation,
       legislating, lawmaking]

Moby Thesaurus II by Grady Ward, 1.0:

42 Moby Thesaurus words for "legislation":
   act, authorization, bill, bylaw, canon, concurrent resolution,
   constitution, decree, dictate, dictation, edict, enaction,
   enactment, form, formality, formula, formulary, institution,
   joint resolution, jus, law, lawmaking, legalization, legislature,
   legitimatization, lex, measure, ordinance, ordonnance, passage,
   passing, prescript, prescription, regulation, resolution, rubric,
   rule, ruling, sanction, standing order, statute, validation