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