1. [noun] A meeting or gathering.
2. [noun] A formal deliberative assembly of mandated delegates.
3. [noun] The convening of a formal meeting.
4. [noun] A formal agreement, contract or pact.
5. [noun] (international law) A treaty or supplement to such.
6. [noun] A generally accepted principle, method or behaviour.
7. [noun] A large formal assembly; 'political convention'.
8. [noun] Something regarded as a normative example; 'the convention of not naming the main character'; 'violence is the rule not the exception'; 'his formula for impressing visitors'.
9. [noun] (diplomacy) an international agreement.
10. [noun] Orthodoxy as a consequence of being conventional.
11. [noun] The act of convening.