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WordReference Random House Unabridged Dictionary of American English © 2024air-line (âr′līn′),USA pronunciation adj. - straight;
direct;
traveling a direct route:Some railroads advertise air-line routes between stations.
air•line (âr′līn′),USA pronunciation n. - Aeronautics
- a system furnishing air transport, usually scheduled, between specified points.
- the airplanes, airports, etc., of such a system.
- Often, airlines. a company that owns or operates such a system.
- a direct line;
beeline. - Mechanical Engineeringan airhose used to pipe air to a deep-sea diver, pneumatic drill, etc.
adj. - of or on an airline.
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