旧きゅう教きょうきゅうきょうMeanings1nounCatholicism; Roman CatholicismRefers to Catholicism as the 'old teaching', often used in contrast with 新教 (Protestantism). Common in historical and religious contexts.旧きゅう教きょうと新しん教きょうの違ちがいについて学まなぶ。