Webster's Revised Unabridged Dictionary · 1913

Overhead

Overhead , adverb

Aloft; above; in or attached to the ceiling or roof; in the story or upon the floor above; in the zenith.
While overhead the moon Sits arbitress. — Milton

Also used adjectively; as, an overhead crane, gear, etc.

Collocations (2)
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.

overhead , noun

1.
same as overhead expenses.
2.
A compartment on a train, bus, or airplane used for storage of luggage or accessory equipment; called also overhead compartment.
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.