Ghost imaging.
The practice of hiding prisoners from inspection from (possibly hostile) outside inspectors.
The blurry appearance of a television picture resulting from interference caused by multipath reception.
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.
A problem with a keyboard where certain simultaneous keypresses trigger the action of a further key that was not in fact pressed.
A method of ending a personal relationship by stopping any contact with the other party and not providing an explanation.
The phenomenon of the writing on one side of a page in a notebook being partly visible on the other side.
A ghostly apparition, a phantom.
Any of certain species of dragonfly of the genus Boyeria, family Aeshnidae.
A threatening mental image.