overhead

Definition
(noun) the expense of maintaining property (e.g., paying property taxes and utilities and insurance); it does not include depreciation or the cost of financing or income taxes Definition
(noun) (computer science) the processing time required by a device prior to the execution of a command Definition
(noun) (computer science) the disk space required for information that is not data but is used for location and timing Definition
(noun) a transparency for use with an overhead projector Definition
(noun) (nautical) the top surface of an enclosed space on a ship Definition
(noun) a hard return hitting the tennis ball above your head Definition
(adj) located or originating from above Definition
(adv) above your head; in the sky Definition
(adv) above the head; over the head