(while) broadcasting or being broadcast
the aviation section of a national military force, including aircraft, base and support facilities, and personnel
a safety device in a car, consisting of a bag that inflates automatically in an accident and prevents the passengers from being thrown forwards
an inflatable mattress
Air-con is the same as → air conditioning .
any device, such as a spoiler, that reduces air resistance and increases the stability of a car, aircraft, etc
to dry by exposure to the air
the space between two objects magnetically related, as between the rotor and the stator in a dynamo, or between two objects electrically related, as between the electrode and the tip of a spark plug
dry air charged with vapor from petroleum or some other hydrocarbon, used for lighting or heating
a gun operated by means of compressed air
any of the membranous air-filled extensions of the lungs of birds, which increase the efficiency of gaseous exchange in the lungs
the part of a political campaign that is conducted over the radio and television airwaves by senior politicians
If you say that someone's claims or promises are just hot air, you are criticizing them because they are made mainly to impress people and have no real value or meaning .
If something happens in mid-air, it happens in the air, rather than on the ground.
In radio or television, when a programme goes off-air or when something happens off-air, it is not broadcast.
The sea air is the air at the seaside, which is regarded as being good for people's health.
the condition in which combat aircraft are airborne and ready for an operation
a shot that misses the basket, basket rim, and backboard
An air base is a centre where military aircraft take off or land and are serviced, and where many of the centre's staff live .
Air brakes are brakes which are used on heavy vehicles such as buses and trains and which are operated by means of compressed air.
a ceramic or metal unit the size of a brick, open at the sides for admitting air to a building interior
freight transported by aircraft
a small tap or valve for controlling the entrance or escape of air from a pipe, chamber, etc.
to cool (an engine ) by a flow of air
the use of aircraft to provide aerial protection for ground forces against enemy air attack
a crash involving one or more aircraft
preserved by exposing to the air and allowing to dry
to dry by exposure to the air
An air drop is a delivery of supplies by aircraft to an area that is hard to get to. The supplies are dropped from the aircraft on parachutes .
a pipe or channel permitting air to travel through a system, building, or other structure, such as a mine
a ferry service that transports passengers and cars by plane
a group of military aircraft, usually under one commander
An air force is the part of a country's armed forces that is concerned with fighting in the air.
the deposition of ice condensed from water vapour in the atmosphere on the surface when the air temperature is below 0°C
a gauge for measuring air pressure
a hole that allows the passage of air, esp for ventilation
an opening in an aircraft through which air is drawn, esp for the engines
a kissing gesture, esp one directed towards a person's cheek, made without making physical contact
a route for travel by air; airway
an airtight compartment, with adjustable air pressure, between places that do not have the same air pressure, as between the working compartment of a caisson and the outside
a large body of air having characteristics of temperature, moisture, and pressure that are approximately uniform horizontally
a U.S. military decoration awarded for meritorious achievement during participation in aerial operations
→ nautical mile
Air miles are points that you collect when you buy certain goods or services and which you can use to pay for air travel .
a situation in which two aircraft pass very close to one another in the air; near miss
an epiphyte, esp an orchid of the large Old World tropical genus Aerides, grown for its white scented flowers spotted with red, purple, or rose, or a bromeliad, esp of the genus Tillandsia
A nation's air power is the strength of its air force.
a device for pumping air in or out of something
Air rage is aggressive or violent behaviour by airline passengers.
An air raid is an attack by military aircraft in which bombs are dropped . This expression is usually used by the country or group that is suffering the attack.