freiverkehrsbörse означает в английский

exchange [exchanges]▼noun
[UK: ɪkˈs.tʃeɪndʒ] [US: ɪks.ˈtʃeɪndʒ]

kerb [kerbs]▼noun
[UK: kɜːb] [US: ˈkɝːb]

outside (over-the-counter) market (US)▼noun