n. (U.S., Southern) ghost, apparition; "The old man told the kids spooky stories about the haints who lived in the old abandoned cabin on the other side of the swamp."

n. faint second image as a result of secondary signals that arrive ahead of or later than the primary signal

v. write for someone else; "How many books have you ghostwritten so far?"

v. move like a ghost; "The masked men ghosted across the moonlit yard"

v. to dim a menu option in order to indicate that it's not selectable at that moment