Runkle rhymes with:
runckel, runkel, dunckel, dunkel, dunkle, granduncle, gunkel, hunkele, kunkel, kunkle, runckel, runkel, uncle
Runkle sounds like:
ramshackle, rangel, rankle, ransall, ransley, reinsel, rengel, renzulli, ringel, ringle, ringley, ronquillo, runckel, runkel