n. One who changes from one opinion, creed, sect, or party to another, with or without a real change in purpose and principle: chiefly used in a religious sense.n. Specifically, in Jewish hist., one who became detached from the heathen and joined a Jewish community.n. Synonyms Neophyte, Convert, Proselyte, etc. (see convert), catechumen.To induce to become the adherent of some given doctrine, creed, sect, or party; proselytize: as, “a proselyted Jew,”