契約を結ぶ

You use this phrase when the negotiation phase is over. It follows the object marker を. You can use it in the past tense 結んだ to say you've finished. Or use it in the future tense 結ぶ予定だ for upcoming signings. It’s a solid, reliable collocation that sounds professional.

Use it for big life milestones. Renting your first Tokyo apartment? You’ll 契約を結ぶ. Starting a new job? You’ll 契約を結ぶ with the company. It’s perfect for business meetings, legal discussions, or even joining a gym. If there is a signature involved, this is your phrase.

Don't use this for casual pinky-swears with friends. If you promise to buy your buddy a beer, don't use 契約を結ぶ. It sounds way too stiff and litigious. For casual plans, just use 約束する (to promise). Also, avoid it for simple purchases like buying a coffee.

The verb 結ぶ (to tie) is deeply meaningful in Japan. It stems from the concept of Musubi, which represents connection and creation. Tying a contract isn't just about legalities. It’s about 'binding' two parties together in a relationship of trust. It’s a beautiful way to view a business transaction.

In very stiff corporate settings, you might hear 契約を締結する. This is the 'CEO level' version of the phrase. If you are exchanging signed documents, you might use 契約を交わす. For a simpler, everyday feel, some people just say 契約する, but 結ぶ adds a nice touch of polish.