| airway | (noun) a commercial enterprise that provides scheduled flights for passengers | Synonyms: airline, airline business |
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| (noun) a duct that provides ventilation (as in mines) | Synonyms: air duct, air passage |
| (noun) the passages through which air enters and leaves the body | Synonyms: respiratory tract |
| (noun) a designated route followed by airplanes in flying from one airport to another | Synonyms: air lane, flight path, skyway |
| clearway | (noun) a road on which you are not allowed to stop (unless you have a breakdown) | - |
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| doorway | (noun) the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close | Synonyms: door, room access, threshold |
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| fairway | (noun) the area between the tee and putting green where the grass is cut short | - |
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| (noun) a tract of ground free of obstacles to movement | - |
| (noun) the usual course taken by vessels through a harbor or coastal waters | - |
| motorway | (noun) a broad highway designed for high-speed traffic | Synonyms: expressway, freeway, pike, state highway, superhighway, throughway, thruway |
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| stairway | (noun) a way of access (upward and downward) consisting of a set of steps | Synonyms: staircase |
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| underway | (adjective) currently in progress | Synonyms: afoot |
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| waterway | (noun) a conduit through which water flows | Synonyms: watercourse |
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| (noun) a navigable body of water | - |