Here's what rhymes with guerrillaism.
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rhythm arisen risen mizzen given vision listen mission prison fission riven addition driven edition algorithm emission incision revision excision ignition omission remission tuition derision erudition fruition imprison logarithm audition logician stiffen glisten rescission position condition decision division tradition commission permission physician provision television admission ambition petition precision cognition collision intuition partition clinician forgiven musician apparition attrition magician sedition volition apposition contrition envision rendition striven rhetorician ebullition munition prevision definition opposition transition repetition suspicion abolition ammunition coalition deposition exhibition inhibition nutrition politician prohibition submission imposition demolition technician dentition indecision intermission paroxysm patrician cataclysm electrician academician dietitian imprecision readmission tactician competition composition recognition transmission acquisition disposition expedition proposition supervision exposition supposition admonition circumcision preposition requisition extradition inquisition disquisition manumission premonition theoretician decomposition superstition subdivision malnutrition mathematician interposition precondition redefinition superposition juxtaposition transposition indisposition presupposition obstetrician pediatrician statistician diagnostician predisposition superimposition wisdom serum theorem cecum gingham system kingdom victim dictum gypsum fearsome winsome symptom pilgrim ecosystem