buy-in

Concise Oxford English Dictionary © 2008 Oxford University Press:
buy-in

▶noun

• 1 a purchase of shares by a broker after a seller has failed to deliver similar shares.

• 2 a purchase of shares in a company by managers who are not employed by it.

• 3 the buying back by a company of its own shares.

• 4 agreement with, or acceptance of, a policy, suggestion, etc.