To promise, engage, or bestow in marriage; betroth.
To take in marriage; marry; wed.
To take to one's self, or make one's own; embrace; adopt; become a participator or partizan in: as, to espouse the quarrel of another; to espouse a cause.
To pledge; commit; engage.
noun.
A spouse.
the GNU version of the Collaborative International Dictionary of English
transitive verb.
To betroth; to promise in marriage; to give as spouse.
transitive verb.
To take as spouse; to take to wife; to marry.
transitive verb.
To take to one's self with a view to maintain; to make one's own; to take up the cause of; to adopt; to embrace.