signage vs collection

signage and collection both are nouns.

Word	Noun	Adjective	Verb	Adverb
signage	Yes	No	No	No
collection	Yes	No	No	No

As nouns, collection is a hypernym of signage; that is, collection is a word with a broader meaning than signage:

Other hypernyms of signage include accumulation, aggregation, assemblage.

signage (noun)	collection (noun)
signs collectively (especially commercial signs or posters)	the act of gathering something together
	a publication containing a variety of works
	request for a sum of money
	several things grouped together or considered as a whole