overhead

adv. Aloft; above; in or attached to the ceiling or roof; in the story or upon the floor above; in the zenith. [ 1913 Webster ]

While overhead the moon
Sits arbitress. Milton. [ 1913 Webster ]

Also used adjectively; as, an overhead crane, gear, etc. [ 1913 Webster ]

Overhead engine, a vertical steam engine in which the cylinder stands above the crank. --
Overhead work, a general term in manufactories for countershafting and gearing, when overhead. [ 1913 Webster ]

n. 1. same as overhead expenses. [ PJC ]

2. A compartment on a train, bus, or airplane used for storage of luggage or accessory equipment; called also overhead compartment. [ PJC ]

3. (Sports) A stroke with a racket in which the ball is struck with the racket over the head, moving in a downward motion; also called overhead stroke. [ PJC ]