There are many other powers that a nation might have other than nuclear ability, and having nukes does not actually grant any of those other powers. North Kore

There are many other powers that a nation might have other than nuclear ability, and having nukes does not actually grant any of those other powers. North Korea, for example, may have nuclear weapons, but they have little diplomatic power, little economic power, little ability to project power, etc. The word "superpower" is typically used to describe a country that dominates many different types of these powers.