The disembodied soul; the soul or spirit of a deceased person; a spirit appearing after death
Any faint shadowy semblance; an unsubstantial image
A 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 form of identity theft in which someone steals the identity, and sometimes even the role within society, of a specific dead person (the "ghost") who is not widely known to be deceased.
(computing) A problem with a keyboard where certain simultaneouskeypresses trigger the action of a further key that was not in fact pressed.
A professional writer who is paid to write material that is officially credited to another person; one who writes on behalf of someone else, often for a celebrity.