This is the 10945th most frequent German word.
schengen
"Schengen" refers to an area in Europe where 27 countries have abolished border controls for free movement under the Schengen Agreement.
Here, 'Schengen' is used as a proper noun, naming the agreement within Europe regarding border control.
Das Schengen-Abkommen erleichtert das Reisen zwischen europäischen Ländern.
The Schengen Agreement facilitates travel between European countries.
In this sentence, 'Schengen-Raum' refers to the geographical area governed by the Schengen Agreement.
Viele Länder gehören zum Schengen-Raum, der offene Grenzen ermöglicht.
Many countries are part of the Schengen Area, which allows open borders.
The term 'Schengen-Visa' is used to describe the visa type that grants access to countries within the Schengen Area.