Igou rhymes with:
goo, gu, ragu, zungu, abou, abreu, accrue, adieu, ado, aeroperu, anew, askew, babu, badu, baku, ballou, ballyhoo, bamboo, bellew, belyeu, benhamou, beu, bleu, blew, blue, boo, brew, brue, byu, c2, canoe, carilou, cat-2, cebu, chaloux, champoux, chengdu, chew, chiu, choo, chou, chu, clue, cmu, construe, coo, corbu, cou, coup, coutu, crew, crewe, cue, deblois, debut, decou, depew, depue, deux, dew, dfw, do, doo, douwe, drew, drive-thru, dru, du, due, egnew, ensue, eschew, ewe, fauroux, few, fitzhugh, flew, flu, flue, fondue, foo, fourtou, frew, frueh, fu, geroux, gignoux, giroux, glew, glue, gnu, goo, grew, grewe, gu, gue, heroux, herscu, hew, hewe, hitherto, hoo, hou, houx, hsu, hu, hue, hugh, hullabaloo, imbue, into, iou, jammu, jamu, jew, joo, ju, jue, jus, kalamazoo, kangaroo, karatsu, katmandu, kazoo, ketou, kew, khoo, khuu, knew, komatsu, koo, ku, kwangju, kyu, laroux, larue, ledoux, lemieux, leroux, leu, lew, lhommedieu, lieu, liou, liu, long-overdue, loo, lou, louw, loux, lu, lue, m2, mailloux, marcou, marcoux, marrou, mccue, mcgrew, mcgue, mchugh, mcknew, mcnew, meiyuh, mew, misconstrue, moo, mu, n92762, neveu, new, nu, ooh, oooh, ou, outdo, outgrew, overdo, overdue, overthrew, pas-de-deux, perdue, peru, peugh, pew, phew, phu, plew, plue, poo, pooh, pou, prew, pru, prue, prugh, pshew, pu, pugh, purdue, pursue, q, q., qu, que, queue, ragu, ramu, raoux, ratu, redo, renew, reto, review, revue, rew, rhew, rhue, richoux, rioux, roux, ru, rue, schewe, schoo, schou, schue, schuh, screw, seydoux, shampoo, shamu, shew, shiu, shoe, shoo, shu, shue, siew, sioux, skew, slew, soo, spew, stew, strew, stu, stuewe, su, subdue, sue, suu, taboo, tattoo, tatu, tew, thankyou, theroux, thew, threw, through, thru, thuy, tien-fu, tieu, timbuktu, to, tobu, too, toyoo, treu, trew, trieu, troyu, true, true-view, tsu, tu, tue, two, u, u., undo, undue, unglue, untrue, urdu, uwe, vanlue, view, vous, vu, vue, wahoo, wenzhou, whay-yu, whew, who, withdrew, woo, wu, xu, xue, yabbadabbadoo, yew, yoo, you, yu, yue, zanu, zhambu, zhou, zhu, zoo, zue, zungu
Igou sounds like:
i's, i.'s, i.s, iacocca, iacocca's, iago, ice, ices, ich, ichi, ichikawa, ickes, ickes', icy, iezzi, ige, igo, igoe, igushi, ihasz, ijaz, ikaes, ike, ike's, ikea, ikeuchi, ikey, ikie, ios, 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