OV vs terrorist act

OV and terrorist act both are nouns.

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

OV (noun)	terrorist act (noun)
a terrorist group of Protestants who oppose any political settlement with Irish nationalists; a paramilitary group that attacks Catholic interests in Northern Ireland	the calculated use of violence (or the threat of violence) against civilians in order to attain goals that are political or religious or ideological in nature; this is done through intimidation or coercion or instilling fear