overture

An opening; a recess or chamber.

c. 1612', George Chapman, A Hymne to Hermes the cave's inmost overture

Disclosure; discovery; revelation.

It was he That made the overture of thy treasons to us.

A motion placed before a legislative body, such as the General Assembly of the Church of Scotland.

A musical introduction to a longer piece of music or a dramatic work (such as a play, an opera, or a motion picture).

The overture was almost at a close; and silence being now more effective than any thing that he could urge in favour of the play, Courtenaye went behind the scenes:...

A medley of themes from a larger work, such as an opera or musical, typically played at the beginning but sometimes played at any part of the work or performed as a standalone piece.

The paradoxical use of an overture at the end of a concert occasionally gave rise to satire in the musical press.

To make overtures; to approach with a proposal.

For a partner setting a table in a game of “house,” an overturing child might assume the role of the father returning home from work at dinnertime rather than overturing by throwing a ball toward the child and yelling “catch.”

Overt, that is, disclosed.

Crest : A falcon, wings overture.

It may be with wings close, i.e. closed, or it may be with its wings elevated, or it may be with wings disclosed, i.e. somewhat open, but inverted, and pointing downwards (and this is practically the same as the expression overt, written sometimes overture). [...] Argent, an eagle recursant wings overture sable - BACK. Argent, an eagle rising, wings overt inverted gules, standing on a baston raguly in bend vert - William PORTER.