ring containment vs terrorist act

ring containment and terrorist act both are nouns.

Word	Noun	Adjective	Verb	Adverb
ring containment	Yes	No	No	No
terrorist act	Yes	No	No	No

ring containment (noun)	terrorist act (noun)
a strategy of defense in cases of bioterrorism; vaccination only of people exposed and others who are in contact with them	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