All betrothal synonyms

noun betrothal

• marriage — (broadly) any of the diverse forms of interpersonal union established in various parts of the world to form a familial bond that is recognized legally, religiously, or socially, granting the participating partners mutual conjugal rights and responsibilities and including, for example, opposite-sex marriage, same-sex marriage, plural marriage, and arranged marriage: Anthropologists say that some type of marriage has been found in every known human society since ancient times. See Word Story at the current entry.
• vow — a solemn promise, pledge, or personal commitment: marriage vows; a vow of secrecy.
• promise — a declaration that something will or will not be done, given, etc., by one: unkept political promises.
• plight — Archaic. pledge.
• troth — faithfulness, fidelity, or loyalty: by my troth.