Definitions
1.nounThe spirit; the soul of man.
2.nounThe disembodied soul; the soul or spirit of a deceased person; a spirit appearing after death"Everyone believed that the ghost of an old lady haunted the crypt."
3.nounAny faint shadowy semblance; an unsubstantial image"not a ghost of a chance; the ghost of an idea"
4.nounA false image formed in a telescope, camera, or other optical device by reflection from the surfaces of one or more lenses.
5.nounAn 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.
6.nounA ghostwriter.
7.nounAn unresponsive user on IRC, resulting from the user's client disconnecting without notifying the server.
8.nounAn image of a file or hard disk.
9.nounAn understudy.
10.nounA covert (and deniable) agent.
11.nounThe faint image that remains after an attempt to remove graffiti.
12.nounAn opponent in a racing game that follows a previously recorded route, allowing players to compete against previous best times.
13.nounA dead person whose identity is stolen by another. See ghosting.
14.noun(in names of species) White or pale."ghost slug; ghostberry; ghostflower; ghost crab; ghost bat"
15.noun(in names of species) Transparent or translucent."ghost ant; ghost catfish; ghost nipper; ghost nudibranch"
16.nounAbandoned."ghost town; ghost net; ghost ramp; ghost ship"
17.nounRemnant; the remains of a(n)."ghost cell; ghost crater; ghost image"
18.nounPerceived or listed but not real."ghost pain; ghost cellphone vibration; ghost island; ghost voter"
19.nounOf cryptid, supernatural or extraterrestrial nature."ghost rocket; ghost deer; ghost cat"
20.nounSubstitute."ghost writer; ghost band; ghost singer"
21.verbTo haunt; to appear to in the form of an apparition.
22.verbTo die; to expire.
23.verbTo ghostwrite.
24.verbTo sail seemingly without wind.
25.verbTo copy a file or hard drive image.
26.verbTo gray out (a visual item) to indicate that it is unavailable.
27.verbTo forcibly disconnect an IRC user who is using one's reserved nickname.
28.verbTo appear without warning; to move quickly and quietly; to slip.
29.verbTo kill.
30.verbTo break up with someone without warning or explanation; to perform an act of ghosting.