0 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.
1 a person in control of a group, country, etc. who is recognized as being important in all parts of the world:
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.