The Collaborative International Dictionary of English v.0.48:

Pronouncement \Pro*nounce"ment\, n.
   The act of pronouncing; a declaration; a formal announcement.
   [1913 Webster]

WordNet (r) 3.0 (2006):

pronouncement
    n 1: an authoritative declaration [syn: pronouncement,
         dictum, say-so]

Moby Thesaurus II by Grady Ward, 1.0:

113 Moby Thesaurus words for "pronouncement":
   Parthian shot, action, address, advertisement, affirmance,
   affirmation, allegation, announcement, annunciation, answer,
   apostrophe, appointment, assertion, asseveration, averment,
   avouchment, avowal, award, brevet, broadcast, bull, bulletin board,
   circular, command, comment, communique, conclusion, condemnation,
   consideration, crack, creed, decision, declaration, decree,
   decree-law, decreement, decretal, decretum, deliverance,
   determination, diagnosis, dictum, diktat, doom, edict, edictum,
   encyclical, enunciation, exclamation, expression, fiat, finding,
   greeting, imperative, interjection, ipse dixit, judgement, law,
   manifesto, mention, note, notice, notification, observation,
   opinion, order, ordinance, ordonnance, phrase, position,
   position paper, positive declaration, precedent, predicate,
   predication, proclamation, profession, prognosis, program,
   programma, promulgation, pronunciamento, proposition, protest,
   protestation, public notice, publication, question, reflection,
   remark, report, rescript, resolution, rule, ruling, say, say-so,
   saying, senatus consult, senatus consultum, sentence, stance,
   stand, statement, subjoinder, thought, ukase, utterance, verdict,
   vouch, white book, white paper, word