Gaon /ɡəˈ(ʔ)oʊn/ noun1 •(Judaism, historical) A sage of the Talmudic academies of BabyloniaThe Gaon also was distressed by the veneration the Hasidim accorded their rabbinic leaders, men whom the Gaon generally regarded as ignoramuses. — 1991 formsGaonim · Gaons · Geonim · gaonim · gaons · geonim