PSF vs terrorism

PSF and terrorism both are nouns.

Word	Noun	Adjective	Verb	Adverb
PSF	Yes	No	No	No
terrorism	Yes	No	No	No

PSF (noun)	terrorism (noun)
a terrorist group of radical Palestinians who split with al-Fatah in 1967 but now have close relations with al-Fatah; staged terrorist attacks against Israel across the Lebanese border	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