/ɡəʊst/
noun
The spirit; the soul of man.The disembodied soul; the soul or spirit of a deceased person; a spirit appearing after deathAny faint shadowy semblance; an unsubstantial imageA false image formed in a telescope, camera, or other optical device by reflection from the surfaces of one or more lenses.An unwanted image similar to and overlapping or adjacent to the main one on a television screen, caused by the transmitted image being received both directly and via reflection.A ghostwriter.An unresponsive user on IRC, resulting from the user's client disconnecting without notifying the server.An image of a file or hard disk.An understudy.A covert (and deniable) agent.The faint image that remains after an attempt to remove graffiti.An opponent in a racing game that follows a previously recorded route, allowing players to compete against previous best times.A dead person whose identity is stolen by another. See ghosting.(in names of species) White or pale.(in names of species) Transparent or translucent.Abandoned.Remnant; the remains of a(n).Perceived or listed but not real.Of cryptid, supernatural or extraterrestrial nature.Substitute.verb
To haunt; to appear to in the form of an apparition.To die; to expire.To ghostwrite.To sail seemingly without wind.To copy a file or hard drive image.To gray out (a visual item) to indicate that it is unavailable.To forcibly disconnect an IRC user who is using one's reserved nickname.To appear without warning; to move quickly and quietly; to slip.To kill.To break up with someone without warning or explanation; to perform an act of ghosting.