• 礼金れいきん — gratuity, key money
• 礼拝れいはい — worship
• 礼服れいふく — formal dress, ceremonial wear
• 無礼ぶれい — rudeness, impoliteness
• 朝礼ちょうれい — morning assembly

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礼 is a key kanji in Japanese social behavior. It expresses respect, gratitude, and rituals that help maintain harmony in daily life. You’ll encounter 礼 in bowing, gift-giving, and formal speech. The radical 礻 comes from 示, which originally meant “to show” or “offer to the gods.”

礼れいを言いうのを忘わすれないでください。
Please don’t forget to say thank you.

彼かれは 礼儀れいぎを知しっています。
He knows proper manners.