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