Ottawa's rhymes with:
iowa's, daiwa's, hanwa's, hosokawa's, iowa's, managua's, miyazawa's, momokawa's, nicaragua's, sanwa's, sequa's, shuwa's
Ottawa's sounds like:
oates, oaths, oatis, oats, odaiko, oddities, odds, odes, odessa, odetics, odious, odysseus, odyssey, odyssey's, otis, otsego, otsuka, ottaway's, otto's, otts, out's, outage, outages, outdoes, outgo, outguess, outguesses, outhouse, outhouses, outs, outsize, outtake, outtakes, outweigh, outweighs, outwits, owades