Dictionary Check: overhead

located or originating from above

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

(computer science) the processing time required by a device prior to the execution of a command

(computer science) the disk space required for information that is not data but is used for location and timing

a transparency for use with an overhead projector

(nautical) the top surface of an enclosed space on a ship