Here are some possibilities:
* A monologue: This is a long speech given by one character, often in a play or a film.
* A soliloquy: Similar to a monologue, but often used to reveal a character's inner thoughts and feelings.
* A dialogue: While it involves two or more people, a dialogue can still focus on one person's speech if the other person is silent or only offers brief responses.
* A confession: This is a speech where one person reveals something personal or hidden.
* A testimony: This is a formal statement given by one person, often in a court of law.
* A lecture: This is a formal speech given by one person to an audience.
Could you tell me more about what you're looking for? Knowing the context would help me give you a more specific answer.