Hydroxy rhymes with:
alexi, alexy, apoplexy, biloxi, boxy, brixey, cooksey, craxi, dixie, dixy, doxey, doxie, doxy, elxsi, epoxy, flexi, folksy, foxy, galaxy, heterodoxy, hoxie, hoxsey, hoxsie, kirksey, laxey, lexie, maxcy, maxey, maxi, maxie, maxy, moxie, nixie, oleksy, orthodoxy, oxy, pixie, proxy, roxie, roxy, sexy, shaanxi, taxi, trixie, trixy, waxy, wuxi
Hydroxy sounds like:
haters, hatrick, hatteras, headdress, headdresses, headers, headrick, headwaters, heaters, heather's, heathers, heathrow's, hedrich, hedrick, heidrich, heidrick, heterosis, heterozygous, hetrick, hettrick, hitters, hooters, hydras, hydrick, hydro's, hydrous, hydrox