Headwater rhymes with:
coldwater, floodwater, goldwater, sidewater, tidewater, backwater, breakwater, bridgewater, bywater, clearwater, coldwater, deepwater, drinkwater, fitswater, fitzwater, floodwater, freshwater, goldwater, pinkwater, rainwater, sidewater, stillwater, tidewater, underwater, wastewater, whitewater
Headwater sounds like:
hader, hadria, haider, hater, hatter, hattery, hattori, haueter, hauter, hayter, header, heater, heather, heathrow, heeter, heider, heidiwear, hider, hither, hitter, hodder, hoddur, hooter, hotter, hotwire, huether, hutter, hyder, hydra, hydro