assonar, ecoar, entoar, percutir, reboar, refletir, repercutir, repetir, repulsar, resoar, ressoar, restrugir, retumbar, reverberar, rolar, rugir, soar
sibilar, sussurrar, tinir, zenir, zinir, zoar, zuir, zumbir, zungar, zunir
tilintar, tinir, tiritir
estridular, estrilar, fretenir, zangarrear, ziziar