OVERHEAD

/ˈəʊvəˌhɛd/ ► audio Scrabble 15 Words With Friends 15

Definition

adjective located or originating from above.
adverb above your head.
adverb above the head.
noun the expense of maintaining property (e.g., paying property taxes and utilities and insurance). — synonyms: operating_expense, operating_cost, budget_items
noun (computer science) the processing time required by a device prior to the execution of a command. — synonyms: command_processing_overhead_time, command_processing_overhead, command_overhead
noun (computer science) the disk space required for information that is not data but is used for location and timing. — synonyms: disk_overhead
noun a transparency for use with an overhead projector. — synonyms: viewgraph
noun (nautical) the top surface of an enclosed space on a ship.
noun a hard return hitting the tennis ball above your head. — synonyms: smash

“Network overhead is the header data that is required to route and transport data over network, whereas fork overhead is the additional time and memory cost of creating and managing new processes within operating system.”
“Place your luggage in the overhead lockers.”
“birds flying overhead”