The Collaborative International Dictionary of English v.0.48:

Consummation \Con`sum*ma"tion\ (k[o^]n`s[u^]m*m[=a]"sh[u^]n), n.
   [L. consummatio.]
   The act of consummating, or the state of being consummated;
   completion; perfection; termination; end (as of the world or
   of life).
   [1913 Webster]

         'T is a consummation
         Devoutly to be wished.                   --Shak.
   [1913 Webster]

         From its original to its consummation.   --Addison.
   [1913 Webster]

         Quiet consummation have,
         And renown['e]d be thy grave.            --Shak.
   [1913 Webster]

   Consummation of marriage, completion of the connubial
      relation by actual cohabition.
      [1913 Webster]

WordNet (r) 3.0 (2006):

consummation
    n 1: the completion of marriage by sexual intercourse
    2: the act of bringing to completion or fruition

Moby Thesaurus II by Grady Ward, 1.0:

104 Moby Thesaurus words for "consummation":
   Z, accomplished fact, accomplishing, accomplishment, achievement,
   achieving, acme, acme of perfection, apodosis, attaining,
   attainment, bitter end, carrying out, catastrophe, ceasing,
   cessation, climax, closure, coda, completing, completion,
   conclusion, crack of doom, culmination, curtain, curtains, death,
   decease, denouement, destination, destiny, discharge, dispatch,
   doom, effect, effectuation, end, end point, end result, ending,
   envoi, epilogue, eschatology, execution, expiration, fait accompli,
   fate, final result, final solution, final twitch, final words,
   finale, finality, finis, finish, finishing, fruition, fulfilling,
   fulfillment, goal, height, highest pitch, implementation, izzard,
   last, last act, last breath, last gasp, last things, last trumpet,
   last word, last words, latter end, mission accomplished,
   ne plus ultra, omega, payoff, peak, perfection, performance,
   period, peroration, pink, pink of perfection, pinnacle, production,
   quietus, realization, realizing, resolution, resting place,
   stoppage, stopping place, success, summit, swan song, term,
   terminal, termination, terminus, top, topping-off, ultimate,
   windup



Bouvier's Law Dictionary, Revised 6th Ed (1856):

CONSUMMATION. The completion of a thing; as the consummation of marriage;
(q.v.) the consummation of a contract, and the like.
     2. A contract is said to be consummated, when everything to be done in
relation to it, has been accomplished. It is frequently of great importance
to know when a contract has been consummated, in order to ascertain the
rights of the parties, particularly in the contract of sale. Vide Delivery,
where the subject is more fully examined. It is also sometimes of
consequence to ascertain where the consummation of the contract took place,
in order to decide by what law it is to be governed.
     3. It has been established as a rule, that when a contract is made by
persons absent from each other, it is considered as consummated in, and is
governed by the law of, the country where the final assent is given. If,
therefore, Paul in New Orleans, order goods from Peter in London, the
contract is governed by the laws of the latter place. 8 M. R. 135; Plowd.
843. Vide Conflict of Laws;, Inception; Lex Loci Contractus; Lex Fori;
Offer.