General:
* Conversation: This is the most common and general term for the act of talking back and forth.
* Dialogue: This implies a more structured or formal conversation, often with a specific purpose.
* Discussion: Similar to dialogue, but often focuses on a particular topic.
* Exchange: A more neutral term, simply describing the act of giving and receiving information.
More specific:
* Response: Refers to a specific reply within a conversation.
* Rebuttal: A specific response that challenges or disagrees with a previous statement.
* Counterargument: A response that directly contradicts an argument.
Figurative:
* Counterpoint: A contrasting idea or argument.
* Flip side: A different perspective or way of looking at something.
To choose the best word, consider:
* The nature of the conversation: Is it casual, formal, or argumentative?
* The focus: Is it about the act of speaking, the content, or the relationship between speakers?
For example:
* "They had a lively conversation about their favorite books."
* "The lawyer presented a strong counterargument to the opposing counsel."
* "The artist's latest work is a fascinating counterpoint to their previous style."