amass vs hoard

amass is not a noun while hoard is a noun.

Word	Noun	Adjective	Verb	Adverb
amass	No	No	Yes	No
hoard	Yes	No	Yes	No

As verbs, amass and hoard are synonyms defined as:

Other synonyms of amass include accumulate, collect, compile, pile up, roll up.

amass (noun)	hoard (noun)
	a secret store of valuables or money

amass (verb)	hoard (verb)
increase in amount by collecting or gathering	get or gather together
get or gather together	save up as for future use