Meaning

• A meeting or gathering.

  "The convention was held in Geneva."

• A formal deliberative assembly of mandated delegates.

  "The EU installed an inter-institutional Convention to draft a European constitution."

• The convening of a formal meeting.

• A formal agreement, contract or pact.

• A treaty or supplement to such.

  "The Vienna convention at the Vienna Congress (1814-15) standardized most of diplomatic conduct for generations."

• A practice or procedure widely observed in a group, especially to facilitate social interaction; a custom.

  "Table seatings are generally determined by tacit convention, not binding formal protocol."