global leader
noun [ C ]
ukus COMMERCE
a company, product, etc. that has higher sales than its competitors in other parts of the world:
The company is a global leader in the distribution of electrical supplies.
POLITICS
a person in control of a group, country, etc. who is recognized as being important in all parts of the world:
Many global leaders now believe that the world's economic future lies in figuring out how to do more with less energy.