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