Answer :
A country that influences with military and economic power. There are many countries with the other things that are not superpowers
The best definition of a superpower is "a country that influences events with its military and economic power".
A superpower is a Nation with a dominant position in the international system, and with the ability and means to influence events and projects of power on a global scale (fundamentally in order to protect its own interests and those of its allies closest); It is considered that a superpower is one step ahead of the rest of the great powers.
A superpower is a much stronger state than any of its potential rivals that dominates all other states in all spheres of activity. Since the end of the Cold War, the United States has been considered by some to be the only superpower. That is why many call it a superpower, in order to highlight a world order different from that of the great powers of the 19th and early 20th century, and different from the balance of power of the Cold War period and therefore with the passage of politics in all its variants in the 21st century.