The term "two-hander" is commonly used in theater or film to describe a play or scene that involves only two characters. However, there are several synonyms that can be used to describe this type of performance or scene. One of the most common synonyms is "two-person show." Other options include "duo drama," "two-character play," or simply "two-man/woman show." These terms emphasize the intimacy of a scene or play that only involves two characters, highlighting the unique dynamic that can develop when actors are sharing the stage without any distractions. Ultimately, these synonyms can convey a specific tone or mood that may be relevant to the performance or scene in question.