What is the meaning of Superpower?

A sovereign state with dominant status on the globe and a very advanced military, especially the United States or formerly the Soviet Union.

An extraordinary physical or mental ability, especially possessed by a superhero or supervillain.

Electricity generated in a large plant that is tied into a regional network, on a larger scale than was common in the early years of commercial electricity production.

A tetration.

Excessive or superior power.

To give extraordinary powers to.

Source: wiktionary.org