grenze

In a sentence

• Die Grenze zwischen den Ländern wurde neu verhandelt.

  The border between the countries was newly negotiated.

  Here, 'Grenze' is used as a noun meaning 'border,' referring to a line separating two areas, especially countries.

• Es gibt keine Grenze für deine Träume.

  There is no limit to your dreams.

  In this sentence, 'Grenze' is used metaphorically to mean 'limit,' referring to a constraint or boundary on possibilities.

• Bitte überschreiten Sie die Grenze nicht ohne Erlaubnis.

  Please do not cross the border without permission.

  Here, 'Grenze' is once again used to mean 'border,' but this time in the context of a physical or figurative boundary one should not cross without authorization.