The highest altitude at which an aircraft may fly due to physical factors, such as low air density.

A device which records data that would be of use in investigating the cause of an aircraft accident; usually as a set of two, comprising a flight data recorder and a cockpit voice recorder.

(uncountable) Flight into, from or through space. / (countable) A voyage in space.

A member of the crew of an airplane who is responsible for the comfort and safety of its passengers.

plural of flight attendant

Used attributively to describe various processes, devices, etc, that use the time an object or light takes to travel a certain distance. See Derived terms.

Of the highest rank, or peak of excellence / In the highest division

Synonym of airplane mode

Any of several internationally agreed standard altitudes that are based on atmospheric pressure rather than on true height

(mathematics) A type of random walk in which the increments are distributed according to a “heavy-tailed” distribution i.e. there are a significant number of large increments