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