1. Located or originating from above
   "an overhead crossing"

1. Directly above; in the sky above
   "planes were flying overhead"
    
2. Above the head; over the head
   "bring the legs together overhead"

1. (tax) 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
   "The landlord raised the rent to cover increasing overheads";
   - operating expense, operating cost
    
2. (nautical) the top surface of an enclosed space on a ship
   "The low overhead in the ship's cabin made it difficult for tall passengers to stand upright"
    
3. A transparency for use with an overhead projector
   "The professor prepared overheads for her lecture";
   - viewgraph
    
4. (computing) the processing time required by a device prior to the execution of a command
   "The engineer worked to reduce the command processing overhead time to improve system responsiveness";
   - command processing overhead time, command processing overhead, command overhead
    
5. (computing) the disk space required for information that is not data but is used for location and timing
   "The file system's disk overhead reduced the actual storage capacity";
   - disk overhead
    
6. A hard return hitting the tennis ball above your head
   "Her overhead smash was too powerful for her opponent to return";
   - smash

Derived forms: overheads

Type of: ceiling, disbursal, disbursement, disc space, disk space, expense, foil, processing time, return, transparency

Antonym: subsurface, surface

Part of: access time, cabin, operating budget

Encyclopedia: Overhead, The Albatross