PSF vs terrorist group

PSF and terrorist group both are nouns.

Word	Noun	Adjective	Verb	Adverb
PSF	Yes	No	No	No
terrorist group	Yes	No	No	No

PSF (noun)	terrorist group (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	a political movement that uses terror as a weapon to achieve its goals