terrorist group vs IAA

terrorist group and IAA both are nouns.

Word	Noun	Adjective	Verb	Adverb
terrorist group	Yes	No	No	No
IAA	Yes	No	No	No

terrorist group (noun)	IAA (noun)
a political movement that uses terror as a weapon to achieve its goals	Yemen-based terrorist group that supports al-Qaeda's goals; seeks to overthrow the Yemeni government and eliminate United States interests; responsible for bombings and kidnappings and killing western tourists in Yemen
	a plant hormone promoting elongation of stems and roots