foreign terrorist organization vs Brigate Rosse

foreign terrorist organization and Brigate Rosse both are nouns.

Word	Noun	Adjective	Verb	Adverb
foreign terrorist organization	Yes	No	No	No
Brigate Rosse	Yes	No	No	No

foreign terrorist organization (noun)	Brigate Rosse (noun)
a political movement that uses terror as a weapon to achieve its goals	a Marxist-Leninist terrorist organization that arose out of a student protest movement in the late 1960s; wants to separate Italy from NATO and advocates violence in the service of class warfare and revolution; mostly inactive since 1989