bridal vs marriage

bridal and marriage both are nouns.

Word	Noun	Adjective	Verb	Adverb
bridal	Yes	Yes	No	No
marriage	Yes	No	No	No

As nouns, marriage is a hypernym of bridal; that is, marriage is a word with a broader meaning than bridal:

Other hypernyms of bridal include marriage ceremony, wedding.

bridal (noun)	marriage (noun)
archaic terms for a wedding or wedding feast	the act of marrying; the nuptial ceremony
	two people who are married to each other
	the state of being a married couple voluntarily joined for life (or until divorce)
	a close and intimate union

bridal (adjective)	marriage (adjective)
of or pertaining to a bride
of or relating to a wedding