insurgence vs insurrection

insurgence and insurrection both are nouns.

Word	Noun	Adjective	Verb	Adverb
insurgence	Yes	No	No	No
insurrection	Yes	No	No	No

As nouns, insurrection is a hypernym of insurgence; that is, insurrection is a word with a broader meaning than insurgence:

insurgence: an organized rebellion aimed at overthrowing a constituted government through the use of subversion and armed conflict
insurrection: organized opposition to authority; a conflict in which one faction tries to wrest control from another

Other hypernyms of insurgence include rebellion, revolt, rising, uprising.

insurgence (noun)	insurrection (noun)
an organized rebellion aimed at overthrowing a constituted government through the use of subversion and armed conflict	organized opposition to authority; a conflict in which one faction tries to wrest control from another