Meaning of Genau in English - how to use Genau in German ?

What is the meaning of "Genau" in English ? How can it be used in German language ?

Genau can be translated as exaclty or precisely, but it is quite often used in colloquial language as an affirmative response. It can be used as a single word to indicate general agreement.

Example of using "genau":

The recent Volkswagen cars are so well designed. / Die jüngsten Volkswagen autos sind so gut gestaltet.
Yes, exactly. / Ja genau.