an opening or aperture; a recess; a recess; a chamber.-disclosure; discovery; revelation.-a proposal; an offer; a proposition formally submitted for consideration, acceptance, or rejection.-a composition, for a full orchestra, designed as an introduction to an oratorio, opera, or ballet, or as an independent piece; -- called in the latter case a concert overture.-to make an overture to; as, to overture a religious body on some subject.