marriage vs partner

marriage and partner both are nouns.

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

marriage (noun)	partner (noun)
the act of marrying; the nuptial ceremony	an associate in an activity or endeavor or sphere of common interest
two people who are married to each other	a person's partner in marriage
the state of being a married couple voluntarily joined for life (or until divorce)	a person who is a member of a partnership
a close and intimate union

marriage (verb)	partner (verb)
	provide with a partner
	act as a partner