Black September Movement vs terrorist group

Black September Movement and terrorist group both are nouns.

Word	Noun	Adjective	Verb	Adverb
Black September Movement	Yes	No	No	No
terrorist group	Yes	No	No	No

Black September Movement (noun)	terrorist group (noun)
a former Palestinian terrorist organization (now merged with Fatah Revolutionary Council) that assassinated the Prime Minister of Jordan and during the 1972 Olympic Games in Munich killed 11 Israeli athletes	a political movement that uses terror as a weapon to achieve its goals