/seuh lil"euh kwee/ , n. , pl. soliloquies .
1. an utterance or discourse by a person who is talking to himself or herself or is disregardful of or oblivious to any hearers present (often used as a device in drama to disclose a character's innermost thoughts): Hamlet's soliloquy begins with "To be or not to be."
2. the act of talking while or as if alone.
[ 1595-1605; soliloquium a talking to oneself, soliloquy, equiv. to soli- SOLI- 1 + loqu ( i ) to speak + -ium -IUM; see -Y 3 ]