She sent an air letter to her mother.

We went to see an air show over the weekend.

This airway is very congested.

My father works for a major airline.

I booked a flight ticket for my trip next week.

My brother is a member of the Japan Air Self-Defense Force.

The North American Aerospace Defense Command is responsible for the aerospace defense of North America.

I bought stamps at the post office.

My father works at a local broadcasting station.

I played a game of checkers with him.