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