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