Abu Nidal Organization vs terrorist act

Abu Nidal Organization and terrorist act both are nouns.

Word	Noun	Adjective	Verb	Adverb
Abu Nidal Organization	Yes	No	No	No
terrorist act	Yes	No	No	No

Abu Nidal Organization (noun)	terrorist act (noun)
a Palestinian international terrorist organization that split from the PLO in 1974; has conducted terrorist attacks in 20 countries	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