foreign terrorist organization vs ABB

foreign terrorist organization and ABB both are nouns.

Word	Noun	Adjective	Verb	Adverb
foreign terrorist organization	Yes	No	No	No
ABB	Yes	No	No	No

foreign terrorist organization (noun)	ABB (noun)
a political movement that uses terror as a weapon to achieve its goals	an urban hit squad and guerrilla group of the Communist Party in the Philippines; formed in the 1980s