overtures >> ˈəʊvətj(ʊ)ə
Definition: [noun] an orchestral piece at the beginning of an opera, play, etc.
Example: the overture to Mozart's ‘Don Giovanni’
Definition: [noun] an introduction to something more substantial.
Example: the talks were no more than an overture to a long debate
Definition: [noun] an approach or proposal made to someone with the aim of opening negotiations or establishing a relationship.
Example: he began making overtures to British merchant banks