Definition:North Celestial Pole

Definition
Let $O$ be a celestial observer situated at the surface of Earth in the Northern hemisphere.

Let $OP$ be a straight line parallel to Earth's axis.

Let $P$ be the point at which $OP$ meets the celestial sphere.

Then $P$ is the north celestial pole.

Also known as
The north celestial pole is also referred to as the north pole, but this can be confused with the North Pole of Earth itself.