Hegemony
In the 19th century, hegemony came to denote the "Social or cultural predominance or ascendancy; predominance by one group within a society or milieu". Later, it could be used to mean "a group or regime which exerts undue influence within a society". Also, it could be used for the geopolitical and the cultural predominance of one country over others, from which was derived "hegemonism", as in the idea that the Great Powers meant to establish European hegemony over Asia and Africa.
Hegemony
The early 20th century, like the late 19th century was characterized by multiple Great Powers but no global hegemon. World War I weakened the strongest of the Imperial Powers, Great Britain, but also strengthened the United States and, to a lesser extent, Japan. Both of these states' governments pursued policies to expand their regional spheres of influence, the US in Latin America and Japan in East Asia. France, the UK, Italy, the Soviet Union and later Nazi Germany (1933–1945) all either maintained imperialist policies based on spheres of influence or attempted to conquer territory but none achieved the status of a global hegemonic power.