The kanji 契 fundamentally represents the concept of an agreement, a contract, or a binding promise. It signifies a mutual understanding and commitment between two or more parties, often involving a formal or informal pledge. It can also imply a bond or connection established through such an agreement or promise.

・On-yomi (音読み): ケイ (kei) ・Kun-yomi (訓読み): ちぎ(る) (chigi(ru))

⚫︎契約 (keiyaku) Translation: Contract; agreement ⚫︎契機 (keiki) Translation: Opportunity; chance; a turning point ⚫︎誓い (chikai) Translation: Oath; vow; promise (using the Kun-yomi reading of 契 as part of the verb 誓う (chika(u)) which means to vow or swear)

The kanji 契 is a pictographic character. It originally depicted a knife (刂, also written as 刀) used to cut and divide something, such as a piece of wood or a sacrificial animal. The upper part represents a hand holding the knife, and the lower part is what the knife is dividing. This action symbolized a binding agreement, as the act of cutting implied a severance of ties if the agreement was broken. The division made something (often a piece of wood or a bone) into two parts, and each party would keep a part, serving as proof of the contract. Over time, the image evolved to represent the concept of a binding agreement and mutual commitment.