Bun ‧ des ‧ bank, the /ˈbʊndəzˌbæŋk/ BrE AmE
the national bank of Germany. In the past, before the Euro became the ↑ currency in Germany, the bank's decisions about rates of ↑ interest (=the additional amount you have to pay back when you borrow money) had a lot of influence on interest rates in other European countries.