terrorist act vs MEK

terrorist act and MEK both are nouns.

Word	Noun	Adjective	Verb	Adverb
terrorist act	Yes	No	No	No
MEK	Yes	No	No	No

terrorist act (noun)	MEK (noun)
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	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