terrorist vs Jacobin

terrorist and Jacobin both are nouns.

Word	Noun	Adjective	Verb	Adverb
terrorist	Yes	No	No	No
Jacobin	Yes	No	No	No

As nouns, Jacobin is a hyponym of terrorist; that is, Jacobin is a word with a more specific, narrower meaning than terrorist:

terrorist: a radical who employs terror as a political weapon; usually organizes with other terrorists in small cells; often uses religion as a cover for terrorist activities
Jacobin: a member of the radical movement that instituted the Reign of Terror during the French Revolution

Other hyponyms of terrorist include cyber-terrorist, cyberpunk, sleeper, suicide bomber.

terrorist (noun)	Jacobin (noun)
a radical who employs terror as a political weapon; usually organizes with other terrorists in small cells; often uses religion as a cover for terrorist activities	a member of the radical movement that instituted the Reign of Terror during the French Revolution