Dialogue noun – An exchange of views for the purpose of exploring a subject or deciding an issue. Silence is an antonym for dialogue in talk topic. Nearby Words: dialog, dialogued, dialoguing, dialogic
Silence Is Golden: "The Invaders", written by Richard Matheson, has no dialogue until the very end (when what little dialogue the episode has constitutes The Reveal).
The first episode of Texhnolyze has approximately ten lines of dialogue, all in a couple of scenes coming near the end of the episode after 11 minutes of near-silence.
When an important character dies, one way to ramp up the emotion is to cut all dialogue and sound effects, adding complete silence to the scene for perhaps ten seconds.