bombing vs act of terrorism

bombing and act of terrorism both are nouns.

Word	Noun	Adjective	Verb	Adverb
bombing	Yes	No	No	No
act of terrorism	Yes	No	No	No

bombing (noun)	act of terrorism (noun)
an attack by dropping bombs	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
the use of bombs for sabotage; a tactic frequently used by terrorists