The term SHOW OPENER is composed of four words: INTRO (5 letters), EMCEE (5 letters), ACTI (4 letters), and ACTONE (6 letters). INTRO is short for introduction, which is a speech or piece of writing that introduces a particular topic or event. An EMCEE is a master of ceremonies, a person who acts as the host of an event, introducing speakers and performers and keeping the event running smoothly. ACTI is short for act, which is a performance by a group or individual, usually involving music, dance, or drama. ACTONE is short for act one, which is the first act of a play, musical, or other performance. Show openers are typically composed of an introduction, an EMCEE, and one or more acts.