an arrangement in which a business or person sells something, especially shares in companies, and then buys them again according to an agreement:
His company have just announced a $1 billion stock buyback.
As part of their sustainability initiative, the company implemented a buy-back program, encouraging customers to return used products for recycling and offering them discounts on future purchases.
The bookstore introduced a textbook buy-back service at the end of the semester, allowing students to sell back their used textbooks for a percentage of the original price.
In an effort to reduce electronic waste, the smartphone manufacturer initiated a buy-back program, enabling customers to trade in their old devices for credit towards the purchase of a new model.
