What rhymes with obsession's

2 Syllables
cessions, freshens, session's, sessions
3 Syllables
accessions, aggressions, compressions, concession's, concessions, confession's, confessions, depression's, depressions, digression's, digressions, discretions, expression's, expressions, fresheners, hessians, impression's, impressions, obsession's, obsessions, oppressions, possession's, possessions, processions, profession's, professions, progression's, progressions, recession's, recessions, regression's, regressions, repression's, repressions, succession's, successions
4 Syllables
expressionhis, indiscretions