The act of coming together; the state of being
together; union; coalition.

General agreement or concurrence; arbitrary custom;
usage; conventionality.

A meeting or an assembly of persons, esp. of
delegates or representatives, to accomplish some specific object, –
civil, social, political, or ecclesiastical.

An extraordinary assembly of the parkiament or
estates of the realm, held without the king’s writ, – as the assembly
which restored Charles II. to the throne, and that which declared the
throne to be abdicated by James II.

An agreement or contract less formal than, or
preliminary to, a treaty; an informal compact, as between commanders of
armies in respect to suspension of hostilities, or between states;
also, a formal agreement between governments or sovereign powers; as, a
postal convention between two governments.