genau

• Wir brauchen die genaue Uhrzeit.

  We need the exact time.

• Seine Messungen sind sehr genau.

  His measurements are very accurate.

As an adverb, often with a number or a point in time.

• Der Zug kommt genau um acht.

  The train arrives at eight exactly.

• Das ist genau das, was ich gesucht habe.

  That is exactly what I was looking for.

spoken, standing alone

On its own, Genau! is one of the most common ways to agree in spoken German.

• — Also treffen wir uns um sieben? — Genau.

  — So we're meeting at seven? — Exactly.