General Definition:
* Audition is the act of listening, especially carefully or attentively.
In the context of music and theater:
* Audition is a trial performance by an actor, musician, dancer, or other performer to demonstrate their skills and suitability for a particular role or position.
In the context of biology:
* Audition refers to the sense of hearing, the ability to detect and interpret sound waves.
In the context of technology:
* Audition can be used to describe a program or software used for audio editing, mixing, and mastering.
Please provide me with more context if you'd like a more specific definition. For example, are you asking about an audition for a play, a music performance, or something else?