world organisation vs global organization

world organisation and global organization both are nouns.

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

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

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

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

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