The concept was first used in 1944 (W.T.R. Fox) to be applied to the UK, USA and USSR (although UK rapidly fall out from this category). It was used to differentiate the Two main powers of the international system during the cold war from the rest.
Broad spectrum capabilities (military-economic-technological-ideological) exercised Across the whole of the international system.
Possess first-class military-political capabilities (nuclear weapons?) and the economies To support such capabilities so they can exercise global influence.
Be active players in process of securitization and de-securitization in all of the regions In the system. Need to be accepted by others as superpower in rhetoric and behaviour. Be fountainheads of universal values to underpin international society (their legitimacy As superpower depend on this success in establishing their legitimacy of such values) Examples: Britain and France in the XIX century, post-first WW (UK, USA, USSR), Post-second WW (USA, USSR), post-cold war (USA).
Inside superpower we can find: hegemonic power and superpower.
Inside great power we can find: great power, emerging power and middle power. Finally, we have regional and small power.
After WWII a great power were superpowers and great powers. After the Cold War the Distinction between superpower and great power became blurred and appeared the