Terrorism rhymes with:
counterterrorism, adventurism, aphorism, barbarism, boosterism, consumerism, counterterrorism, futurism, mannerism, mesmerism, militarism, monetarism, plagiarism, secularism, thatcherism, voluntarism
Terrorism sounds like:
tarquinio, tarzan, terracciano, terzian, thoresen, thoreson, thorsen, thorson, threesome, tiresome, torgeson, torosian, torrejon, torsion, tourigny, tourism, trajan, treason, trism, trochmann, trojan, truchan, truism, turchin, turchyn, turgeon, turismo, turkmen