Accurate information, measurements, and statistics are correct to a very detailed level. An accurate instrument is able to give you information of this kind.

An accurate statement or account gives a true or fair judgment of something.

You can use accurate to describe the results of someone's actions when they do or copy something correctly or exactly.

An accurate weapon or throw reaches the exact point or target that it was intended to reach. You can also describe a person as accurate if they fire a weapon or throw something in this way.