Here are some examples of words containing "aud" and their meanings:
* Audacious: Bold, daring, and fearless.
* Audacity: The quality of being daring or bold.
* Auditory: Relating to the sense of hearing.
* Audience: A group of people gathered to hear or watch a performance or event.
* Auditorium: A large room or building used for public gatherings, especially for performances.
The specific meaning of "aud" can vary slightly depending on the context, but it generally relates to boldness, hearing, or a group of listeners.