| airsickness |
motion sickness, usu. including nausea, caused by air travel. |
| airspace |
the space extending above a particular land area, esp. that of a political entity. [2 definitions] |
| airspeed |
the speed of a flying object, esp. an aircraft, relative to the surrounding air. |
| airstrike |
an attack by air forces or other military aviation against a ground or naval target. |
| airstrip |
an airfield or landing strip, usu. unpaved and without the personnel or equipment of an airport; runway. |
| air taxi |
a small aircraft that carries passengers or cargo over short distances, esp. to places not served by regular airlines. |
| airtight |
preventing the entrance or exit of air. [2 definitions] |
| airtime |
broadcast time allotted, as to an event or news story, on television or radio. |
| air-to-air |
of a missile or the like, designed to be shot by an aircraft at an aerial target. |
| air traffic |
movement of airplanes and other air transportation vehicles through the air or on runways. |
| airwaves |
the media used for transmission of radio and television signals. |
| airway |
a route of passage for an aircraft. [3 definitions] |
| air well |
a usu. central court that is enclosed by the exterior walls of a building and provides air and light. |
| airworthy |
fit and safe for use in flight. |
| airy |
open to the flow of air; breezy. [5 definitions] |
| aisle |
any passageway, as between sections of seats in a theater or sections of shelves in a store. [2 definitions] |
| ajar1 |
partly opened, as a hinged door, window, or lid. |
| ajar2 |
not in accordance or harmonious with. |
| AK |
abbreviation of "Alaska," a U.S. state on the northwestern coast of North America between the Bering Strait and Canada. |
| a.k.a. |
abbreviation of "also known as." |
| akimbo |
with hand on hip and elbow pointed away from the body. [2 definitions] |