Which term is correct?
The answer is here:
Both terms are correct but are used in different meanings.
World English and World Englishes are not the same and many learners confuse them.
World English and World Englishes are not the same and many learners confuse them.
The term World English (also called International English,
or English for Business Communication) denotes international activities in the
field of business, arts, politics, economics, etc.
World Englishes denotes varieties of English used in different
sociolinguistic contexts worldwide.
There is an international journal World Englishes. It is
devoted to the research of English in various linguistic and cultural contexts.