(idiomatic, broadcasting) An unintended interruption in a broadcast during which nothing is transmitted: a silent period on radio or a silent period with no picture on television.

A branch of the military mainly devoted to air warfare, as opposed to (land) army and navy. / A unit in the U.S. Air Force larger than a division but smaller than a command.

A rifle that propels a pellet or other projectile by using compressed gas, rather than an explosion of gunpowder or other means.

An imaginary guitar that a listener to (usually rock) music pretends to play.

(intransitive) To mime the action of playing a guitar.

Cooled by air (such as an engine, rather than by other means such as water).

(usually in the plural) A two-handed gesture resembling quotation marks.

a public display of stunt flying, aerobatics, and historical aircraft.

A clothes storage cupboard built around a house's hot water system, using the heat to dry damp clothes.

(literally) Air that has been heated, especially so as to function as the lifting agent of a hot-air balloon. / (idiomatic) Empty, confused, or exaggerated talk lacking meaning or substance; bluster.