Spirit; the soul of man. In this sense seldom used. But hence,

The soul of a deceased person; the soul or spirit separate from the body; an apparition. The mighty ghosts of our great Harrys rose. To give up the ghost, is to die; to yield up the breath or spirit; to expire. The Holy Ghost, is the third person in the adorable Trinity .

To die; to expire.

To haunt with an apparition.