| A | B |
| audition | try out |
| audible | can be heard |
| auditorium | a place to watch a performance |
| inaudible | can't be heard |
| audience | people who watch a performance |
| audit | 1. inspection for records or accounts 2. take a class, but not for credit |
| audist | a person who judges you based on your ability to hear |
| audiologist | person who checks your hearing |
| audiogram | a graph that shows your level of hearing |
| audiovisual | using both sight and sound |