Widower rhymes with:
beerbower, boomhower, borrower, burrower, deboer, denboer, follower, heyboer, isenhower, krakower, lawnmower, mumpower, narrower, shallower, slothower, spainhower, theatergoer, yellower
Widower sounds like:
wader, waiter, water, waterer, waterway, watery, watry, weather, weider, wetter, wetterau, what're, whether, whitehair, whiter, whitewater, whither, whitrow, whittier, wiater, widder, wider, widuri, wieder, withdraw, withdrew, wither, witherow, withrow, witter, wittwer, witwer, woodrow, wydra