Merriam-Webster Online Dictionary
convention (noun)1.
a) - agreement contract
b) an agreement between states for regulation of matters affecting all of them
c) a compact between opposing commanders especially concerning prisoner exchange or armistice
d) a general agreement about basic principles or procedures , also a principle or procedure accepted as true or correct by convention
2.
a) the summoning or of an assembly - convening
b) an assembly of persons met for a common purpose , especially a meeting of the delegates of a political party for the purpose of formulating a platform and selecting candidates for office
c) the usually state or national organization of a religious denomination
3.
a) usage or custom especially in social matters
b) a rule of conduct or behavior
c) a practice in bidding or playing that information between partners in a card game (as bridge) - conveys
d) an established technique, practice, or device (as in the theater)
Merriam-Webster Online Thesaurus
convention (noun)1.
a coming together of a number of persons for a specified purpose
SYNONIMS:
assembly, congress, convention, convocation, council, gathering, get-together, huddle, powwowRELATED WORDS:
clinic, workshop; cabinet, caucus, conclave, synod; demonstration, rally; confab, conversation, dialogue ( dialog), discourse, discussion, palaver, talk; negotiation, parley, summit; conference, forum, round-robin, roundtable, seminar, symposium; audience, interview, session2.
a formal agreement between two or more nations or peoples
SYNONIMS:
accord, alliance, compact, convention, covenant, pactRELATED WORDS:
entente, entente cordiale; bargain, bond, charter, concord, contract, deal, settlement, understanding; projet3.
an arrangement about action to be taken
SYNONIMS:
accord, bargain, compact, contract, convention, covenant, deal, disposition, pact, settlement, understandingRELATED WORDS:
charter, treaty; binder, pledge, promise; alliance, association, entente, entente cordiale, league, partnership; acceptance, approval, assent, concurrence, consent, OK ( okay)4.
an inherited or established way of thinking, feeling, or doing
SYNONIMS:
convention, custom, heritage, prescription, rubric, ruleRELATED WORDS:
ethic, form, mode, mores, norm, principles, standards, values; birthright, inheritance, legacy; folklore, lore, superstition; culture, lifestyle