Detention rhymes with:
attention, contention, extension, hypertension, hypotension, pretension, retention, tension, apprehension, ascension, attention, comprehension, condescension, contention, convention, dimension, dissension, extension, gentian, henschen, hypertension, hypotension, invention, laurentian, mention, misapprehension, pension, pretension, prevention, reinvention, retention, suspension, tension
Detention sounds like:
damnation, dandeneau, dantin, danton, dantoni, dantonio, dantuono, demotion, denden, denomination, dentin, dentine, dentino, dentition, denton, dentton, detonation, diantonio, diminution, dimunition, domination, donathan, donation, downtime, downtown, dundon, dunedin, dunton