<p><strong>Noun</strong></p><ul><li>Aeronautics</li><li>a system furnishing air transport, usually scheduled, between specified points</li><li>the airplanes, airports, etc., of such a system</li><li>airlines</li><li>a company that owns or operates such a system</li><li>a direct line; beeline</li><li>an airhose used to pipe air to a deep-sea diver, pneumatic drill, etc.</li></ul><p><strong>Adjective</strong></p><ul><li>of or on an airline</li></ul>