1
audible
heard or able to be heard.
2
audience
a group of people who gather together to listen to or watch something
3
audio
of or relating to the sound that is heard on a recording or broadcast.
4
audition
a short performance to show the talents of someone (such as an actor or musician).
5
auditorium
a large room or building where people gather to hear a speech or watch a performance.
6
asterisk
a symbol * that is used in printed text, sometimes to tell someone to read a note that can be found at the bottom of the page.
7
asteroid
a minor planet
8
astronaut
a person who travels into outer space in a spacecraft.
9
astronomer
a person who studies stars, planets, and other objects in outer space.
10
astronomical
extremely large