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