Catholicism or the Catholic Church; one of the three major branches of Christianity, led by the Pope in Rome. Also known as 公教 gōng​jiào, 罗马公教 luó​mǎ​gōng​jiào, or 罗马教会 luó​mǎ​jiào​huì.

(bound form) disciple; apprentice; student; follower of a religion