To come together; meet; unite: said of things.To come together; meet in the same place; assemble, as persons, usually for some public purpose or the promotion of some common interest: as, the legislature will convene in January; the citizens convened in the city hall.Synonyms To congregate, muster, gather.To cause to assemble; call together; convoke.To summon to appear, as before a public (especially a judicial) officer or an official body.In civil law, to sue.