| airfare | (noun) the fare charged for traveling by airplane | - |
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| airfield | (noun) a place where planes take off and land | Synonyms: field, flying field, landing field |
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| airflow | (noun) the flow of air | Synonyms: air flow, flow of air |
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| airfoil | (noun) a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight | Synonyms: aerofoil, control surface, surface |
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| airforce | (noun) the airborne branch of a country's armed forces | Synonyms: air force |
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| airframe | (noun) the framework and covering of an airplane or rocket (excluding the engines) | - |
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