a form of dramatic entertainment, comedic solo, or the like by a single speaker

a comedian's monologue.

a prolonged talk or discourse by a single speaker, esp. one dominating or monopolizing a conversation.

any composition, as a poem, in which a single person speaks alone.

a part of a drama in which a single actor speaks alone; soliloquy.

noun

dialogue

noun

address , descant , discourse , disquisition , harangue , lecture , sermon , soliloquy , speech , stand-up bit , talknotes:monologue comes from greek and soliloquy from latin , but both mean \'speaking alone\' , oration