Here's what rhymes with iac.
back lack pack nach rack sac sack hack jack tack fac knack lac shack mac mak tak whack wrack yak mack wack yack black attack track crack stack plaque slack aback smack snack flak quack clack claque flack repack elegiac maniac shellac unpack zodiac ipecac anorak highjack cardiac piggyback gunnysack thumbtack rickrack mudpack skyjack paperback almanac demoniac hardtack haversack amnesiac razorback pickaback lumberjack insomniac applejack crackerjack steeplejack counterattack quarterback stickleback nymphomaniac megalomaniac Words that almost rhyme with iac
bag lag tag rag gag hag wag fag mag nag sag zag dag shag flag drag slag stag brag crag snag swag blag toerag dishrag fleabag scrag washrag nosebag wigwag sleazebag chinwag lollygag lallygag saddlebag scalawag scallywag bank task rank tank thank mask sank cask masque shank bask dank hanc lank talc hank yank basque blank drank flank flask frank crank plank shrank franc prank clank spank stank swank unmask outrank embank antitank riverbank databank charabanc pointblank