suicide bomber vs terrorist act

suicide bomber and terrorist act both are nouns.

Word	Noun	Adjective	Verb	Adverb
suicide bomber	Yes	No	No	No
terrorist act	Yes	No	No	No

suicide bomber (noun)	terrorist act (noun)
a terrorist who blows himself up in order to kill or injure other people	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