Overhead /(?)/

O·ver·head

Overhead

adv.
  1. 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.

Phrases & Compounds
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

n.
  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. 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. (Sports)