Synonyms to groomsman

best man, acolyte, adjutant, agent, aid, aide, aide-de-camp, aider, assistant, attendant, auxiliary, bridemaiden, bridesmaid, bridesman, coadjutant, coadjutor, coadjutress, coadjutrix, deputy, executive officer, help, helper, helpmate, helpmeet, lieutenant, matron of honor, paranymph, paraprofessional, second, servant, sideman, supporting actor, supporting instrumentalist, usher, wedding attendant, wedding party, Maecenas, abettor, admirer, advocate, aficionado, alter ego, alternate, amicus curiae, angel, apologist, attorney, backer, backup, backup man, buff, champion, defender, dependence, dummy, encourager, endorser, exponent, fan, favorer, figurehead, friend at court, locum, locum tenens, lover, mainstay, maintainer, partisan, patron, pinch hitter, pleader, procurator, promoter, protagon