Is it der, die or das Ankauf?

Sense 1

der

Meaning

[1] The acquisition of valuables

[1] der Erwerb von Wertstücken

[1] Second-hand shops often advertise with the purchase of used goods
[1] Second-Hand-Shops werben vielfach mit dem Ankauf von Gebrauchtwaren.

Dictionary data includes material derived from Wiktionary. Wiktionary