Taekwondo rhymes with:
riendeau, rondeau, badeau, badeaux, bordeau, bordeaux, bourdeau, brideau, dau, dedeaux, doe, doh, dough, godot, goudeau, nadeau, nedeau, rideau, rideaux, riendeau, rondeau, trudeau
Taekwondo sounds like:
tagamet, takemoto, tashkent, techint, thickened, thousand, thousandth, toughened, tousignant, toussaint, tsukamoto