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