overhead /ˈəʊvəˌhɛd/noun 13adjective 2adverb 2preposition 1forms 3 noun13 •The expense of a business not directly assigned to goods or services provided. •The items or classes of expense not directly assigned to goods or services provided. •Any cost or expenditure (monetary, time, effort or otherwise) incurred in a project or activity, which does not directly contribute to its progress or outcome. •Wasted money. •Data or steps of computation used only to facilitate the computations in the system and not directly related to the actual program code or data being processed.Network overhead is the header data that is required to route and transport data over the network, whereas fork overhead is the additional time and memory cost of creating and managing new processes within the operating system. •A compartment above the seats for stowing luggage in a passenger aircraft.There was no room left in the overheads for our luggage, our seats did not recline, and the washrooms were right behind us. — 2013 •An overhead projector. •A smash. •An overhead throw. •A sheet of transparent material with an image used with an overhead projector; an overhead transparency. •The system of overhead wires used to power electric transport, such as streetcars, trains, or buses. •A type of bridge, also commonly known as an overpass or flyover, which carries one form of traffic over another. •The ceiling of any enclosed space below decks in a vessel. adjective2 •Located above, especially over the head.Place your luggage in the overhead lockers. •Kicked over one's own head. adverb2 •Above one's head; in the sky. •(no longer used) Per head; for each individual. preposition1 •Above.Cigarette smoke was sucked out through the cracks in the glass of the glazed panes overhead the side street and the parking lot. — 1976 formsoverheads · more overhead · most overhead
