Oat rhymes with:
afloat, bacote, banxquote, bloat, boat, capote, chipote, choat, choate, coat, connote, cote, demote, denote, devote, dote, ducote, float, gloat, goat, groat, grote, haute, hinote, hote, kote, misquote, moat, mote, note, outvote, overwrote, pote, promote, quote, remote, rewrote, roat, rote, schaut, sloat, sloate, sproat, terre-haute, throat, tote, uncoat, underwrote, unquote, vannote, vogt, vote, wrote
Oat sounds like:
o'day, o'dea, o'dowd, oad, oath, oathout, oda, oday, odd, oddi, oddity, oddy, ode, odea, oded, odette, odowd, ot, ota, otey, otha, ott, ottawa, ottaway, otte, otto, out, outdate, outdated, outdid, outdo, outed, outta, outwit, outwitted, owada, owed