1 Syllable: S
2 Syllables: SU
Bauer, bower, Brewer, Brewster, cooler, Cooper, Cooper's, countered, coward, cruder, cruiser, doers, fewer, flower, Fowler, future, Gower, Hooper, Hoover, hour's, housework, Howard, Howard's, Hubert, humor, humour, junior, looser, loser, louder, Lucerne, lucre, lunar, Luther, mover, Mueller, neuter, Newark, newer, nuclear, outburst, outer, outskirts, outward, pewter, poorer, powder, power, prouder, ruder, ruler, rumor, rumour, Rupert, schooner, Schuster, scoured, Seward, sewer, shower, smoother, sooner, soured, steward, Stewart, Stewart's, stouter, Stuarts, stupor, suitor, super, tower, trooper, trousers, truer, Tudor, tumor, tutor, Uber, user, viewer, voucher
3 Syllables: USU
accuser, computer, consumer, devour, empower, encounter, intruder, maneuver, manoeuvre, peculiar, producer, pursuer, reviewer, seducer, untutored, Vancouver
4 Syllables: UUSU
Found 106 words across 4 groupings. Skipped 55 excess words of a similar stem.