terrorist act vs Qassam Brigades

terrorist act and Qassam Brigades both are nouns.

Word	Noun	Adjective	Verb	Adverb
terrorist act	Yes	No	No	No
Qassam Brigades	Yes	No	No	No

terrorist act (noun)	Qassam Brigades (noun)
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	the military arm of Hamas responsible for suicide bombings and other attacks on Israel