terrorist group vs IBDA-C

terrorist group and IBDA-C both are nouns.

Word	Noun	Adjective	Verb	Adverb
terrorist group	Yes	No	No	No
IBDA-C	Yes	No	No	No

terrorist group (noun)	IBDA-C (noun)
a political movement that uses terror as a weapon to achieve its goals	a Turkish terrorist organization that claimed responsibility for bombing a British consulate and bank in Istanbul; a violent opponent of Turkey's secular government and its ties to the European Union and NATO