noun

1. The spirit; the soul of man.

2. The 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. Any faint shadowy semblance; an unsubstantial image

   “not a ghost of a chance; the ghost of an idea”

Synonyms: spook, spy, glimmer, glimmering, glimpse, hint, inkling, phantom

verb

1. To haunt; to appear to in the form of an apparition.

2. To die; to expire.

3. To ghostwrite.