Here's what rhymes with ascertain.
pain chain attain pane bane tain certaine deign urbane main brain gain obtain plain plane rain reign train ln sustain vain vein cane drain stain champagne lane sane terrain fain lain pertain rein mane twain vane wane feign appertain arraign thane wain contain campaign domain grain strain retain slain abstain crane detain hurricane mundane ordain arcane germane inane moraine overlain skein sprain swain chicane murrain reattain maintain remain complain entertain insane cocaine disdain humane profane regain aeroplane sugarcane butane cellophane humaine monoplane romaine urethane retrain explain refrain restrain constrain halothane ingrain wholegrain inhumane coxswain legerdemain windowpane hydroplane foreordain preordain polyurethane demimondaine reexplain Words that almost rhyme with ascertain
tame dame same came name game blame fame shame lame maim aspartame became claim frame flame overcame acclaim aflame defame forename rename declaim ballgame proclaim exclaim reclaim filename inflame disclaim selfsame quitclaim counterclaim