Here's what rhymes with fiancai.
guy chi quae kai by my high why die lie thy y buy cry sky tie vi hi shy sigh bi bye dye fi hy nigh pi pie thai thigh vie dei ly psi rye ty wir awry hai lye mai muy nai wry cy fy lai luy mei sy tai thei wai phi dry try fly spy fry ply sly pry tri trie pri untie sty aquae bonsai amebae stye shanghai banzais slier apply deny imply nearby rely nuclei alkali defy goodbye underlie alibi samurai standby belie decry termini amoebae ramify ossify spry turfy lanai scurfy mummify supply reply thereby occupy whereby comply hereby modify signify verify certify notify amplify magnify nullify pacify ratify unify lullaby pupae codify descry edify mollify overlie vilify deify firefly retry vivify horrify reunify stupefy versify barfly beatify drachmai ripply speechify overbuy dandify yuppify justify satisfy stimuli clarify qualify specify classify butterfly glorify gratify quantify alveoli fortify rectify falsify terrify typify crucify dignify liquefy mortify personify resupply acidify mystify stratify stultify triply ultrahigh blowfly calcify misapply liquify overfly scarify hyperbolae vitrify identify multiply simplify testify purify diversify beautify solidify oversupply dragonfly preoccupy emulsify petrify reclassify revivify cumuli prettify gentrify refortify syllabify solemnify intensify disqualify indemnify objectify demystify detoxify electrify dissatisfy declassify exemplify oversimplify misidentify transmogrify