ghost vs suggestion

ghost and suggestion both are nouns.

Word	Noun	Adjective	Verb	Adverb
ghost	Yes	No	Yes	No
suggestion	Yes	No	No	No

As nouns, suggestion is a hypernym of ghost; that is, suggestion is a word with a broader meaning than ghost:

Other hypernyms of ghost include proffer, proposition.

ghost (noun)	suggestion (noun)
a mental representation of some haunting experience	the act of inducing hypnosis
a suggestion of some quality	an idea that is suggested
the visible disembodied soul of a dead person	the sequential mental process in which one thought leads to another by association
a writer who gives the credit of authorship to someone else	a proposal offered for acceptance or rejection
	persuasion formulated as a suggestion
	a just detectable amount