Overthrown rhymes with:
dethrone, throne, thrown, cadrone, cirone, crone, dethrone, drone, groan, groen, grone, grown, homegrown, krohn, latrone, mccrone, montrone, outgrown, overgrown, pirone, prone, rhone, roan, roane, roen, rone, shirone, throne, thrown, tirone, trone, tyrone
Overthrown sounds like:
overdrawn, overtrain, overturn