marriage offer vs proposal

marriage offer and proposal both are nouns.

Word	Noun	Adjective	Verb	Adverb
marriage offer	Yes	No	No	No
proposal	Yes	No	No	No

As nouns, marriage offer and proposal are synonyms defined as:

Other synonyms of marriage offer include marriage proposal, proposal of marriage.

marriage offer (noun)	proposal (noun)
an offer of marriage	something proposed (such as a plan or assumption)
	the act of making a proposal
	an offer of marriage