The kanji 礼 generally conveys the idea of "courtesy," "respect," "bow," or "ceremony." It signifies proper conduct, showing deference to others, and participating in rituals. It encompasses a wide range of behaviors that demonstrate politeness and consideration.

・On-yomi (音読み): レイ(rei) ・Kun-yomi (訓読み): れい(rei) - this is also the most common reading when the kanji is used alone, and it means "bow" or "courtesy."

⚫︎お礼(o-rei) Translation: Thanks; gratitude. ⚫︎礼儀正しい(reigi tadashii) Translation: Polite; well-mannered. ⚫︎失礼(shitsurei) Translation: Excuse me; impolite (literally "losing courtesy").

The kanji 礼 is a pictophonetic character, combining a semantic component and a phonetic component. It is comprised of two parts. The left side is 示 (しめす - shimesu), which originally depicted an altar or a sacred place and signifies "sacrifice" or "ritual." The right side is 豊 (ほう - hou), which originally depicted a vessel and suggests "richness" or "abundance". The combination of these components conveys the concept of performing rituals with respect and offerings, thus leading to the meaning of "courtesy" or "ceremony." Over time, the character evolved to represent the broader concept of politeness and respect.