Turndown rhymes with:
rundown, sundown, ashdown, blastdown, breakdown, clampdown, closedown, comedown, countdown, crackdown, drawdown, godown, hillsdown, hoedown, knockdown, lansdowne, letdown, lockdown, lowdown, markdown, meltdown, piltdown, putdown, rundown, shakedown, shootdown, showdown, shutdown, slowdown, southdown, sundown, touchdown, underdown, writedown
Turndown sounds like:
tarantino, termination, thornton, tramontana, tramontano, tramontin, trantham, trentham, trentman, trenton, trimedyne, turrentine