OV vs terrorist group

OV and terrorist group both are nouns.

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

OV (noun)	terrorist group (noun)
a terrorist group of Protestants who oppose any political settlement with Irish nationalists; a paramilitary group that attacks Catholic interests in Northern Ireland	a political movement that uses terror as a weapon to achieve its goals