Jain /d͡ʒeɪn/adjective 1noun 1forms 1 adjective1 •Of or pertaining to Jainism. noun1 •An adherent or follower of Jainism.Donovan, The Universal Soldier He's a Catholic, a Hindu, an atheist, a Jain, A Buddhist and a Baptist and a Jew, And he knows he shouldn't kill, And he knows he always will formsJains