Buy back refers to the act of repurchasing something that was previously sold or given away. This can include buying back a product, service, or even a company’s own shares from shareholders. The purpose of a buy back can vary, but it is often done to regain ownership or control, to reduce the number of outstanding shares, or to increase the value of the remaining shares. Buy backs can also be used as a strategic financial move to boost a company’s stock price or to prevent a hostile takeover. In personal finance, buy backs can refer to repurchasing items that were previously sold, such as a car or a house. Overall, buy backs involve the exchange of money for the return of something that was once owned or possessed.