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