otkup

1. (of produce, raw materials) purchase; buying up
   Ove godine je otkup malina počeo kasnije. — This year the buying up of raspberries started later.
   U centru grada je otvoren otkup starog zlata. — A shop buying old gold has opened in the city centre.
2. (of a flat, shares, a stake) buyout; redemption
   Podneli smo zahtev za otkup stana. — We applied to purchase the flat.
   Firma je najavila otkup akcija od malih akcionara. — The company announced a buyout of shares from small shareholders.
3. (for a hostage, a captive) ransom
   Otmičari traže otkup od milion evra. — The kidnappers are demanding a ransom of a million euros.
   Porodica je platila otkup za oslobađanje taoca. — The family paid a ransom for the hostage's release.

Usually followed by the genitive: otkup malina, otkup stana. In the sense 'ransom', otkupnina is more common.