terrorist organization vs AUC

terrorist organization and AUC both are nouns.

Word	Noun	Adjective	Verb	Adverb
terrorist organization	Yes	No	No	No
AUC	Yes	No	No	No

terrorist organization (noun)	AUC (noun)
a political movement that uses terror as a weapon to achieve its goals	a terrorist organization in Colombia formed in 1997 as an umbrella for local and regional paramilitary groups; is financed by earnings from narcotics and serves to protect the economic interests of its members