• 儒教じゅきょう — Confucianism; the Confucian teaching tradition
• 儒学じゅがく — Confucian studies; study of Confucian classics
• 儒家思想じゅかしそう — Confucian thought or philosophy

With the person radical 亻 on the left and the phonetic part related to 需 on the right, 儒 points to a “person of what is needed” — someone who provides the teaching, manners, and guidance a society expects. Over time it came to mean a Confucian scholar and the Confucian tradition itself.