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KEY: Convention.
SYN: Assemblage, meeting, gathering, conference, cabinet, convocation, congress, session, synod, treaty, compact.
ANT: Recess, non-convention, dissolution, prorogation, promise, understanding, word, parole.
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KEY: Conventional.
SYN: Customary, usual, ordinary, stipulated, prevalent, social.
ANT: Unusual, unsocial, legal, compulsory, statutable, immutable, natural, invariable.
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KEY: Conventual.