overhead Meaning, Definition & Usage

1. 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
   operating cost; operating expense; budget items.
   
2. noun (computer science) the processing time required by a device prior to the execution of a command
   command processing overhead time; command processing overhead; command overhead.
   
3. noun (computer science) the disk space required for information that is not data but is used for location and timing
   disk overhead.
   
4. noun a transparency for use with an overhead projector
   viewgraph.
   
5. noun (nautical) the top surface of an enclosed space on a ship
   
6. noun a hard return hitting the tennis ball above your head
   smash.
   
7. adjective located or originating from above
   
   • an overhead crossing
8. adverb above your head; in the sky
   
   • planes were flying overhead
9. adverb above the head; over the head
   
   • bring the legs together overhead

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