Assert rhymes with:
reassert, disconcert, insert, reassert, alert, avert, bert, berte, birt, blurt, boisvert, burt, burtt, chert, curt, dessert, dilbert, dirt, disconcert, divert, erte, evert, exert, flirt, gert, girt, herdt, hert, hirt, hurt, hurtt, inert, insert, invert, kirt, kuhrt, kurt, mcgirt, mcguirt, mcwhirt, overt, peart, pert, purt, reassert, revert, schwerdt, shirt, skirt, spurt, squirt, subvert, thibert, unhurt, vanwert, vert, wert, wirt
Assert sounds like:
accardi, accardo, accord, accorded, accredit, accredited, accreted, accrued, accurate, accuride, achord, ackert, ackroyd, acord, acordia, acquired, acrid, agard, agreed, akard, ashworth, asserted, assort, assorted, assured, aujourd'hui, awkward, aykroyd