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