air conditioner |
a machine that cools the air in a room or car. An air conditioner also takes the dust and dampness out of the air. |
air conditioning |
a system that cools air and takes dust and dampness out of it. Air conditioning is used inside buildings and cars. |
aircraft |
any machine that can fly through the air, such as an airplane, helicopter, glider, or balloon. |
aircraft carrier |
a very large ship with a flat deck on which airplanes can take off and land. |
air force |
the branch of a nation's armed forces that trains and fights using aircraft. |
airline |
a system of transportation that allows people to fly from one place to another, or a business that owns and operates the equipment to do this. |
airliner |
a large airplane used to fly people from one place to another. |
airmail |
of or having to do with mail sent by air. [5 definitions] |
airplane |
a machine that can fly because of the force of air upon its wings; plane. An airplane is driven by propellers or a jet engine. |
airport |
a large area of level land where airplanes can land and take off. |
air pressure |
the force of air on things. Air pressure has to do with how much force air has when it has been compressed into a space like a tire. It is also the pressure of the earth's atmosphere. |
airship |
an aircraft that is lighter than air and can be steered. An airship has an engine and is filled with gas. |
airsick |
feeling sick or dizzy because of air travel; feeling ill due to flying. |
airstrip |
a landing strip or cleared area where aircraft land or take off; runway. An airstrip usually is not paved and does not have the workers or equipment of an airport. |
airtight |
keeping air in or out. [2 definitions] |
airy |
open to the flow of air. [2 definitions] |
aisle |
an open space for passing between rows or sections of seats or shelves. |
ajar1 |
partly opened. |
AK |
abbreviation of "Alaska." |
akimbo |
with hand on hip and elbow pointed away from the body. |
akin |
belonging to the same family; related; kin. [2 definitions] |