The Collaborative International Dictionary of English v.0.48:

pact \pact\ (p[a^]kt), n. [L. pactum, fr. paciscere to make a
   bargain or contract, fr. pacere to settle, or agree upon; cf.
   pangere to fasten, Gr. phgny`nai, Skr. p[=a][,c]a bond, and
   E. fang: cf. F. pacte. Cf. Peace, Fadge, v.]
   An agreement; a league; a compact; a covenant. --Bacon.
   [1913 Webster]

         The engagement and pact of society which goes by the
         name of the constitution.                --Burke.
   [1913 Webster]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006):

PACT
       Partnership in Advanced Computing Technologies (org. UK)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006):

PACT
       Personal Air Communications Technology, "pACT"


V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006):

PACT
       Production Analyses Control Technique


Moby Thesaurus II by Grady Ward, 1.0:

37 Moby Thesaurus words for "pact":
   accord, agreement, alliance, arrangement, bargain,
   binding agreement, bond, cartel, collective agreement, compact,
   concord, concordat, consortium, contract, convention, covenant,
   covenant of salt, deal, dicker, employment contract, entente,
   formal agreement, ironclad agreement, legal agreement,
   legal contract, mutual agreement, paction, promise, protocol,
   settlement, stipulation, transaction, treaty, understanding,
   union contract, valid contract, wage contract