2. Aviary: a large cage, or building for birds.

  A. My grandmother had a aviary for her doves.

  B. Bird cages, buildings, or enclosures can all be aviaries.

3. Aviation: the flying of aircrafts.

  A. My mom wanted to be an aviator when she was younger.

  B. I have many aviators in my family: My uncle, cousin, and aunt-in-law.

bar/o

(pressure, weight)

2.Baric: pertaining to pressure, esp. of the atmosphere.

  A:

  B:

3.

2.Bellicose: demonstrating aggression and wellingness to fight.

  A.

  B.

3.Casus Belli: an act or situation provoking or justifying war.

  A.

  B.