wirklichkeit

In a sentence

• Die Wirklichkeit sieht oft anders aus als die Vorstellung.

  Reality often looks different than the imagination.

  Here, 'Wirklichkeit' is used to refer to 'reality' as opposed to an imagined or conceptual idea.

• In der Wirklichkeit konnten wir ihre Theorie bestätigen.

  In reality, we were able to confirm their theory.

  Here, 'Wirklichkeit' defines the practical or real-world application or situation where the theory holds true.

• Kunst ist eine Möglichkeit, die Wirklichkeit zu interpretieren.

  Art is a way to interpret reality.

  Here, 'Wirklichkeit' denotes 'reality' as the objective or subjective world that can be interpreted through artistic expression.