• 買かう — to buy
• 買かい物もの — shopping
• 売ばい買ばい — buying and selling
• 不ふ買ばい — boycott
• 購買こうばい — purchase / buying
• 仲買なかがい — brokerage / broker
• 買収ばいしゅう — acquisition / buyout
• 買かい手て — buyer

Originally depicting shells as currency, 買 reflects ancient exchange systems. It now represents a fundamental daily action — to buy — in modern Japanese life.

スーパーで野や菜さいを買かいました。
I bought vegetables at the supermarket.

母ははに花はなを買かってあげました。
I bought flowers for my mother.