North Pole

When referring to the geographic location on Earth, the term is a proper noun and is always capitalized. It denotes a specific, singular point of convergence for all meridians, making it a unique landmark in global navigation and geography.

In a scientific or physical context, such as magnetism or electricity, the term is used as a common noun and is typically not capitalized. In this sense, it refers to a functional property of a dipole rather than a specific place on a map.