guidepost vs fingerpost

guidepost and fingerpost both are nouns.

Word	Noun	Adjective	Verb	Adverb
guidepost	Yes	No	No	No
fingerpost	Yes	No	No	No

As nouns, fingerpost is a hyponym of guidepost; that is, fingerpost is a word with a more specific, narrower meaning than guidepost:

Other hyponyms of guidepost include fingerboard.

guidepost (noun)	fingerpost (noun)
a rule or principle that provides guidance to appropriate behavior	a guidepost resembling a hand with a pointing index finger
a post bearing a sign that gives directions or shows the way