Astr
A star shaped symbol
Asterisk
A short performance to show off talents
Audition
Something good that is more than what was expected or required
Bonus
A drug that is used to kill harmful bacteria and to cure infection
Antibiotic
Continuing or occurring again and again for a long time. Happening or existing frequently or most of the time.
Chronic
Something extremely large; relating to astronomy.
Astronomical
A group of people who gather together to listen or watch something.
Audience
Producing good or helpful results
Beneficial
The story of a real person's life written down by another person.
Biography
A watch or clock that measures time precisely.
Chronometer
Someone who travels into outer space
Astronaut
A large room or building where people gather to hear a speech or watch a performance
Auditorium
Giving or existing in large amounts. Giving or providing many good things.
Bountiful
Biological or chemical substance or situation that is dangerous to human beings and the environment.
Biohazard
To cause things to agree in time or to make things happen at the same time and speed.
Synchronize
Someone who studies stars, planets, and other objects in space
Astronomer
Of or relating to sound
Audio
Not causing death or serious injury. Not cancerous
Benign
Capable of being slowly destroyed and broken down into very small parts by natural processes
Biodegradable
Arranged in the order that things happened or came to be. Using time as a measurement.
Chronological
A minor planet
Asteroid
Heard or able to be heard
Audible
Kind and generous
Benevolent
A science that deals with things that are alive such as plants and animals.
Biology
A description of events in the order they happened.
Chronicle