act of terrorism vs Al Ummah

act of terrorism and Al Ummah both are nouns.

Word	Noun	Adjective	Verb	Adverb
act of terrorism	Yes	No	No	No
Al Ummah	Yes	No	No	No

act of terrorism (noun)	Al Ummah (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 group formed in India in 1992; is believed to be responsible for bombings in southern India in 1998