Rename Products

Hi there,
we just bought Kriesi and uploaded the Travel Data. We will sell Journeys. The breadcrup respectivly the url then always shows the Register Product.

Is ist possible to rename this?

Example:

https://transsibirische-eisenbahn.eu/produkt/pek/ (here we wish to rename produkt) and

https://transsibirische-eisenbahn.eu/produkt-kategorie/moskau-peking/ (here we wish to rename produkt-kategorie).

How can we do this.

Thanks and regards
Peter