PSF vs FTO

PSF and FTO both are nouns.

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

PSF (noun)	FTO (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