from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A person who uses a free ticket for admittance, accommodation, or entertainment.
- n. A vehicle, such as an aircraft, that transports no passengers or freight during a trip.
- n. A person regarded as dull-witted or sluggish.
- n. A partially submerged log or trunk.
- transitive v. To pilot or drive (a vehicle) carrying no passengers or freight.
- transitive v. To pull (dead or dying blossoms) off a flower.
- intransitive v. To make a trip without passengers or freight: "The instruments were out, and it meant they had to deadhead back on another airplane” ( Walter J. Boyne).
- intransitive v. To bypass a senior employee in order to promote a more junior employee.
- adv. Without passengers or freight; empty.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A person either admitted to a theatrical or musical performance without charge, or paid to attend
- n. An employee of a transportation company, especially a pilot, traveling as a passenger for logistical reasons, for example to return home or travel to their next assignment.
- n. Anyone traveling for free.
- n. A train or truck moved between cities with no passengers or freight, in order to make it available for service
- n. A person staying at a lodging, such as a hotel or boarding house, without paying rent; freeloader.
- n. A stupid or boring person; dullard
- n. Driftwood.
- n. A fan of the rock band the Grateful Dead (usually Deadhead).
- n. A zombie.
- v. To travel as a deadhead, or non-paying passenger.
- v. To drive an empty vehicle.
- v. To send (a person or message) for free.
- v. To remove spent or dead blossoms from a plant.
from the GNU version of the Collaborative International Dictionary of English
- adj. a rough block of wood used as an anchor buoy.
- n. One who receives free tickets for theaters, public conveyances, etc.
- n. A buoy. See under Dead, a.
from The Century Dictionary and Cyclopedia
- n. In founding: The extra length of metal given to a cast gun.
- n. The tailstock of a lathe. It contains the dead-spindle and back-center, while the live-head or headstock contains the live-spindle.
- n. Nautical, a rough block of wood used as an anchor-buoy.
- n. One who is allowed to ride in a public conveyance, to attend a theater or other place of entertainment, or to obtain any privilege having its public price, without payment.
- To provide free passage, admission, etc., for; pass or admit without payment, as on a railroad or into a theater: as, to deadhead a passenger, or a guest at a hotel.
- To travel on a train, steamboat, etc., or gain admission to a theater or similar place, without payment.
- n. In lumbering, a sunken or partly sunken log.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a train or bus or taxi traveling empty
- n. a nonenterprising person who is not paying his way
From dead + head. (Wiktionary)