Monologue.

ETYM French monologue, Greek, speaking alone; monos alone, single, sole + logos speech, discourse, legein to speak. Related to Legend.
One person speaking, though the term is generally understood to mean a virtuoso solo performance. Literary monologues are often set pieces in which a character reveals his or her personality, sometimes unintentionally (as in the dramatic monologue); in drama the soliloquy performs a similar function.
A monologue can occur in a dialogue; for example, in a conversation where one person suddenly launches into a lengthy anecdote.
1. A (usually long) dramatic speech by a single actor.
2. A long utterance by one person (especially one that prevents others from participating in the conversation).

ETYM Latin soliloquium; solus alone + loqui to speak. Related to Sole ly, and Loquacious.
1. A (usually long) dramatic speech intended to give the illusion of unspoken reflections.
2. Speech one makes to oneself; SYN. monologue.
In drama, thinking aloud. A soliloquy is a speech for the benefit of the audience only and by convention is not heard by any other actor on stage at the time.

ETYM French, from Italian tirada, properly, a pulling; hence, a lengthening out, a long speech, a tirade, from tirare to draw; of Teutonic origin, and akin to Eng. tear to redn. Related to Tear to rend, and cf. Tire to tear.
A violent denunciation; SYN. philippic, broadside.
Long, violent speech.