1. （艺人等的）试镜，试演，试唱，试奏
An audition is a short performance given by an actor, dancer, or musician so that a director or conductor can decide if they are good enough to be in a play, film, or orchestra.

2. 试镜;让…试演（或试唱、试音）
If you audition or if someone auditions you, you do an audition.

1. a test of the suitability of a performer

Synonym: tryout

2. the ability to hear
the auditory faculty

e.g. his hearing was impaired

Synonym: hearingauditory sensesense of hearingauditory modality