1 Syllable: S
AB, act, ad, adds, ads, and, Anne's, App, apt, as, at, ax, axe, back, bad, badge, bag, band, banged, bangs, banned, bat, bath, bats, Bess, best, Beth, bets, black, bland, bless, blest, brag, brand, breast, breath, Brest, cab, cad, calves, canned, cans, cap, capped, caps, Capt, cat, cess, chap, chat, checks, chef, cheques, chess, chest, chez, clad, clams, clans, clap, clapped, cleft, crab, crabbed, crabs, crack, crag, crammed, crest, cus, dab, dad, dammed, damned, dams, dans, dat, deaf, death, debts, decks, deft, des, desk, drab, drag, dragged, drags, dress, edge, eft, ers, ess, esse, etched, ex, f, fac, fact, fad, fag, fangs, fanned, fans, fat, fax, fetch, flag, flagged, flags, flange, flap, flapped, flaps, flat, flax, fledged, flesh, Franz, fresh, Gad, gag, gangs, gap, gets, glad, gland, gnat, grab, grabbed, grams, grand, Grande, grands, guess, guest, hack, had, hadst, hag, halved, halves, hams, hand, hanged, hangs, Hans, hap, has, hat, hath, hats, have, hedge, Heft, Hess, Hesse, ins, Jack, Jacques, jagged, jammed, jams, jazz, Jeff, jest, jets, Katz, kept, knack, Knapp, lab, lac, lack, lad, lag, lagged, lags, lambs, land, lap, lapped, laps, lapse, las, lat, lath, lax, ledge, left, les, lest, lets, Lev, lex, Mac, Mack, mad, Mag, Maj, mak, mand, manned, mans, map, mapped, maps, mat, math, mats, Matt, Max, mesh, mess, Metz, nad, nag, nap, Nat, necks, nes, nest, nets, next, pack, pact, pad, pangs, pans, pap, pat, path, Pax, pest, pets, plaid, planned, plans, plaque, plat, Platt, pledge, prac, Pratt, pres, Presse, quack, ques, quest, rack, rag, rammed, rams, Rand, rap, rapped, rapt, rat, ref, reft, rest, Rev, Rex, s, sac, Sachs, sack, sacs, sad, sag, saith, sand, sans, sap, sapped, sat, Saxe, says, scanned, scans, scat, scrap, sects, Sess, Seth, sets, sex, shack, shad, shams, sketch, slab, slack, slag, slammed, slap, slapped, sledge, smack, snack, snap, snapped, snaps, spanned, spans, spat, specks, stab, stabbed, stabs, stack, stag, stand, Stat, steppes, steps, strand, strap, strapped, straps, stress, stretch, tab, tack, tact, tad, tag, tagged, tags, tak, tanned, tap, tapped, taps, tat, tax, test, Tex, text, that, that's, theft, threats, track, tract, tramps, trans, trap, trapped, traps, tres, vans, vat, vest, vex, wag, wax, wedge, West, West's, wrap, wrapped, wraps, wrapt, wrath, wrecks, wrest, wretch, X, Yes, zag, zest
2 Syllables: SU
abstract, address, annex, combat, compact, complex, compress, contest, contract, convex, defects, digest, effects, excess, extract, firsthand, impact, impress, objects, progress, projects, protest, recess, redress, regress, rejects, subjects, suspects, upsets
2 Syllables: US
aback, abreast, accepts, adapt, addressed, adepts, affects, afresh, allege, arrest, assess, attack, attest, attract, begat, begets, behest, bequest, bereft, burlesque, cadets, caress, collapse, collects, combats, command, compressed, confess, connects, corrects, cortege, Cortes, cravat, demand, depress, detects, detest, detract, directs, disband, distract, distress, divest, ducats, egress, elapse, elects, enact, enmeshed, entrap, entrapped, erects, exact, expand, expects, express, fierceness, finesse, forgets, Francaise, grotesque, harangued, harangues, impressed, infest, intact, invest, Japan's, Macbeth, Midwest, molest, neglects, noblesse, northwest, obsessed, offhand, oppress, outstretched, perhaps, perplex, possess, profess, progressed, protects, react, redressed, reflects, refresh, regrets, relapse, relax, repress, request, respects, retract, selects, southwest, subtract, success, suggest, suppress, tempests, thereat, transact, transgress, undress, unless, unpacked, unplanned, unrest, vignettes, whereas, whereat, withstand
3 Syllables: UUS
acquiesce, cigarettes, coalesce, dispossess, inexact, interact, intersects, nonetheless, SOS, tenderest, understand, unexpressed
4 Syllables: UUUS
Found 530 words across 5 groupings. Skipped 150 excess words of a similar stem.