foreign terrorist organization vs MEK

foreign terrorist organization and MEK both are nouns.

Word	Noun	Adjective	Verb	Adverb
foreign terrorist organization	Yes	No	No	No
MEK	Yes	No	No	No

foreign terrorist organization (noun)	MEK (noun)
a political movement that uses terror as a weapon to achieve its goals	a terrorist organization formed in the 1960s by children of Iranian merchants; sought to counter the Shah of Iran's pro-western policies of modernization and opposition to communism; following a philosophy that mixes Marxism and Islam it now attacks the Islamic fundamentalists who deposed the Shah