Insurgency rhymes with:
counterinsurgency, counterinsurgency, counterinsurgency, resurgency, counterinsurgency, emergency, nonemergency, resurgency, urgency, agency, cogency, contingency, counterinsurgency, emergency, exigency, interagency, nonemergency, regency, resurgency, stringency, urgency
Insurgency sounds like:
increasing, incursions, insurgencies