Synonyms to call on

adjure, administer an oath, appeal, appeal to, beg, beseech, call for help, call upon, clamor for, conjure, crave, cry for, cry on, cry to, entreat, impetrate, implore, imprecate, invoke, kneel to, obtest, plead, plead for, pray, put under oath, put upon oath, run to, supplicate, swear, swear in, advocate, Maecenas, abet, abettor, acquaintance, admirer, advance, advise, aficionado, agent, aid and abet, allege in support, alpenstock, alter ego, alternate, amicus curiae, angel, answer, apologete, apologist, apologizer, argue for, arm, assert, athletic supporter, attorney, attorney-at-law, back, backbone, backer, backing, backstop, backup, backup man, bandeau, barrister, barrister-at-law, bearer, best friend, blandish, boost, bosom friend, bra, brace, bracer, bracket, brassiere, brief, brother, buff, buttress, cajole, cane, carrier, casual acquaintance, cervix, champion, close acquaintance, close friend, coach, coax, comfort, commend, confer, confidant, confidante, consult with, contend for, corset, counsel, counselor, counselor-at-law, countenance, counter, crook, crutch, cry up, defend, def