Ondo rhymes with:
relondo, accomando, anchondo, ando, armando, arredondo, arrendondo, biondo, blando, brando, caliendo, condo, crescendo, dando, durando, edmundo, elizondo, endo, escuchando, fernando, ferrando, galindo, hernando, hondo, indo, innuendo, jindo, kondo, lando, landow, lindo, lindow, londo, marando, mirando, mondo, morando, mundo, nando, nintendo, obando, oquendo, orlando, pando, raimondo, rando, raymundo, redondo, relondo, rolando, rotondo, rotundo, sando, sandow, sendo, telemundo, vendo, vialpando, villalpando, window, yandow
Ondo sounds like:
omead, omit, omitted, onate, oneida, onoda, onto, ouimet, ouimette, owned