1. (v. t.) To make one's own; to take up the cause of; to adopt; to embrace; to marry; as, to espouse a new belief or principle\.

2. (v. t.) To betroth; to promise in marriage; to give as spouse.

3. (v. t.) To take as spouse; to take to wife; to marry.

accept adopt advocate affiliate allege in support answer approve argue for assert back be made one be spliced become one campaign for carry catch champion contend for contract matrimony counter couple crusade for defend embrace get hitched go in for intermarry interwed maintain make a plea marry mate miscegenate pair off pass plead for ratify rebut refute remarry reply respond rewed riposte say in defense speak for speak up for stand up for stick up for support sustain take on take to wife take up uphold urge reasons for wed wive