Here's what rhymes with waterway.
way away weigh whey wei aweigh they may day say pay re lay today j array bay decay gay k ray che hay nay ballet sway fay fe yea allay dey hey ley passe rei sei jay kc lei payee rea rj tae zwei bey neigh cay fey roue shay purvey play stay delay survey clay essay gray grey obey pray okay prey cafe tray fray oj slay underway valet attache bouquet faraway fillet ij ok overlay sleigh bj bk drei fj tj tre bray dray flay getaway parquet belay brae hideaway moray sachet stowaway toupee noway overpay trey aurae hurray layaway reweigh spay foldaway tearaway walkaway anyway convey holiday spray betray dismay halfway repay stray astray runaway defray disarray disobey papillae passageway protege dossier gangway puree saute underlay alleyway breakaway sobriquet soiree wordplay workaday caraway castaway filet giveaway inveigh splay throwaway byplay nisei patellae prepay soubriquet takeaway flyaway hooray overplay overstay urethrae briquet outplay outstay underpay bobsleigh copay copulae display yesterday interplay portray vertebrae cliche lamellae naivete cabaret emigre francais matinee naturae nebulae replay toothache crochet croquet fistulae lingerie risque souffle straightaway fibulae ricochet airplay pleurae resurvey sorbet underplay sickbay medullae umbrae everyday formulae sequelae societe maxillae scapulae carriageway stingray macrame roundelay caesurae uvulae cybercafe misplay respray microarray cabriolet penumbrae tarantulae communique trabeculae companionway salmonellae caravanserais