Ios rhymes with:
dios, dios', rios, torrijos, agnos, alamitos, almos, altemose, antibioticos, astros, athenaios, barbados, bidcos, bimbos, bios, brazos, buenos, burritos, calbos, camaros, campesinos, carlos, cartoneros, catacosinos, cecos, cementos, cerritos, chanos, charalambos, cheerios, chikos, cisneros, cizneros, cmos, conant-pablos, constantinos, cosmopulos, cosmos, cruzados, damianos, davos, dextrose, dimitrios, dios, dios', dlugos, dlugosz, dospasos, dospasos', ellios, envos, ethnos, explosivos, fieros, galactose, galanos, gantos, garros, genoese, halmos, hambros, handros, haritos, iakovos, janos, karos, katsanos, korologos, kronos, kryptos, kudos, kynikos, lactose, lamos, lantos, laos, latinos, liacos, lobos, lycos, maltose, marcos, marcos', marielitos, matamoros, miklos, minardos, miskitos, montross, nagymaros, narcos, natsios, nicandros, pahnos, panos, petroleos, phobos, picassos, pothitos, pozos, prinos, pylos, ramos, retablos, rios, roukos, santos, sarlos, saros, scios, solomos, soros, sucrose, tecos, telefonos, telos, tesobonos, thanos, thassos, tokos, torrijos, troyanos, tsakos, tumazos, vagelos, vlachos, vlahos, vranos, winos, yacos, yugos
Ios sounds like:
i's, i.'s, i.s, iacocca, iacocca's, iago, ice, ices, ich, ichi, ichikawa, ickes, ickes', icy, iezzi, ige, igo, igoe, igou, igushi, ihasz, ijaz, ikaes, ike, ike's, ikea, ikeuchi, ikey, ikie, iosue, iowa's, is, isa, isaac, isaacks, isaacs, isaak, isaiah, isay, isch, ischo, ise, ish, ishaq, ishee, ishi, ishi's, ishii, ishikawa, isis, issa, issac, issah, issie, issue, issue's, issues, issues', issy, isu, isuzu, iwaki, iwasaki, iwosaki, izzi, izzo, izzy, izzy's