overtures

noun
  1. 1

    An opening; a recess or chamber.

  2. 2

    Disclosure; discovery; revelation.

  3. 3

    (often in plural) An approach or proposal made to initiate communication, establish a relationship etc.

  4. 4

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

  5. 5

    A musical introduction to a piece of music.

Antonyms

Source: https://en.wiktionary.org/wiki/overture, https://en.wiktionary.org/wiki/overtures