Mammoth Uncensored Word List:
113 words ending with sm, 7 letters long

ableism agonism amorism animism asteism atavism atheism atomism baalism babuism baptism bardism biprism bogyism bossism bromism brutism bruxism cambism charism chemism chorism cladism clonism copyism cosmism cretism cultism cyclism czarism dadaism diorism dodoism donnism dualism echoism egotism elitism entrism epicism erotism etacism etatism exotism faddism falsism fantasm fascism fattism fauvism fideism fogyism foodism guruism handism heroism heurism hoboism iconism idolism imagism itacism jujuism karaism ladyism laicism leftism leggism leucism lionism locoism lookism maidism mobbism myalism mythism narcism neurism obelism odylism ogreism onanism ooplasm oralism orphism peonism phaeism phobism photism pianism pietism plenism rankism realism sarcasm selfism sensism sizeism slumism sophism statism tachism tactism tourism tropism tsarism tychism tzarism uranism utopism wholism yobbism zanyism