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