global vs worldwide

global and worldwide both are adjectives.

Word	Noun	Adjective	Verb	Adverb
global	No	Yes	No	No
worldwide	No	Yes	No	No

As adjectives, global and worldwide are synonyms defined as:

global and worldwide: involving the entire earth; not limited or provincial in scope

Other synonyms of global include planetary, world-wide, world.

global (adjective)	worldwide (adjective)
involving the entire earth; not limited or provincial in scope	of worldwide scope or applicability
having the shape of a sphere or ball	spanning or extending throughout the entire world
	involving the entire earth; not limited or provincial in scope