Flach rhymes with:
lach, lache, latch, latsch, vlach, attach, bache, batch, brach, bratsch, catch, detach, dispatch, drach, gach, gatch, hach, hatch, kach, krach, lach, lache, latch, latsch, mache, match, matsch, mismatch, overmatch, patch, rach, reattach, rematch, scratch, snatch, stach, tatsch, thach, thatch, tkach, unattach, vlach
Flach sounds like:
faal's, fables, fabulous, fails, falasco, falck, falco, fales, falik, falise, falk, falke, falkowski, fall's, fallacies, fallacious, fallacy, fallis, fallish, fallows, falls, false, falwell's, faulk, faulks, febles, feels, felch, felice, felicia, felicia's, felis, felix, felix's, feliz, fellas, fellow's, fellowes, fellows, fells, fellsway, fels, felske, felucca, fialkowski, filch, files, filice, fillies, fills, filosa, flack, flag, flagg, flags, flaig, flak, flake, flakes, flaky, flasch, flash, flash's, flashes, flashy, flask, flasks, flaugh, flawless, flaws, flax, fleas, fleck, flecks, fleece, fleeces, fleecy, fleek, flees, fleig, fleisch, fleiss, fleiss', fleiss's, flesch, flesh, fleshy, flex, flexes, flexi, flicek, flick, flicks, flies, flis, fliss, floc, flock, flocks, flog, flook, floss, flossie, flows, fluck, fluegge, fluke, flukes, flulike, flus, flush, flushes, flux, foale's, fobel's, foehlich, foibles, foiles, foils, folck, foley's, foliage, folic, folk, folkes, folkish, folks, folks', folksy, folkway, folkways, follies, follis, follows, folse, folz, fool's, foolish, fools, foulk, foulke, foulkes, foulks, fouls, fowles, fowlkes, fuel's, fuels, fulco, fulk, fulks, full's, full-size