espouse vs marry

espouse and marry both are verbs.

Word	Noun	Adjective	Verb	Adverb
espouse	No	No	Yes	No
marry	No	No	Yes	No

As verbs, espouse and marry are synonyms defined as:

Other synonyms of espouse include conjoin, get hitched with, get married, hook up with, wed.

espouse (verb)	marry (verb)
take up the cause, ideology, practice, method, of someone and use it as one's own	take in marriage; married
choose and follow; as of theories, ideas, policies, strategies or plans	perform a marriage ceremony
take in marriage; married