EEC vs global organization

EEC and global organization both are nouns.

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

As nouns, global organization is a hypernym of EEC; that is, global organization is a word with a broader meaning than EEC:

EEC: an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members
global organization: an international alliance involving many different countries

EEC (noun)	global organization (noun)
an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members	an international alliance involving many different countries