Schwarzfahren is a compound noun literally meaning 'black-riding', but translates as 'fare dodging'. You can get accused of Schwarzfahren either if you use public transport without a valid ticket or drive a car without a valid driver's license.
In Germany, unlike most other European countries, public transport does not have barriers or turnstiles so it is easy to get on the U-Bahn without a ticket. However, if you decide to fare dodge, you run the risk of being caught by ticket inspectors, and the fines are hefty.
Always remember to validate your ticket before you get on a train or tram, because fines for first-time offenders in Germany are normally around €60.
Berlin U-Bahn, U5 line. Photo: DPA