What is the term for conversation in a play?

The term for conversation in a play is referred to as "dialogue in drama." This term encompasses the spoken exchanges between characters, and it is essential for advancing the plot, developing characters, and conveying themes. Through dialogue, authors create dynamic interactions that allow audiences to understand the motivations and relationships of the characters.

The other terms mentioned do not fit this definition. A diatribe usually refers to a forceful and bitter verbal attack, which does not capture the essence of conversational exchanges. A stanza is a grouped set of lines in a poem, unrelated to the conversational elements in drama. A soliloquy is a specific type of dialogue where a character speaks their thoughts aloud while alone on stage, meant to provide insight into their inner feelings rather than a conversation with others. Thus, "dialogue in drama" is the most accurate term for conversation in a play.