global organization vs world organization

global organization and world organization both are nouns.

Word	Noun	Adjective	Verb	Adverb
global organization	Yes	No	No	No
world organization	Yes	No	No	No

As nouns, global organization and world organization are synonyms defined as:

global organization and world organization: an international alliance involving many different countries

Other synonyms of global organization include international organisation, international organization, world organisation.

global organization (noun)	world organization (noun)
an international alliance involving many different countries	an international alliance involving many different countries