1 syllable:
boars, boers, bores, bors, chores, clore's, cohrs, cores, corps, corps', cours, crores, door's, doors, dores, drawers, dwars, floors, fores, four's, fours, gaurs, gore's, gores, hors, kohrs, mohrs, moore's, mor's, morze, oars, ores, poors, pores, pours, roars, roehrs, rohrs, sawrs, scaurs, schorr's, scores, shore's, shores, smores, snores, soars, sores, spores, store's, stores, stores', storrs, storz, tores, tours, vores, war's, wars', warze, whores, yours, zorz

2 syllables:
abhors, acores, adoors, adores, alborz, all-fours, allfours, amores, arbores, ardours, aurores, azores, backdoors, becor's, bedsores, bellcore's, bezoars, bookstores, cahors, centaur's, centaurs, clangours, claymores, codewars, coldsores, comores, concours, delore's, delors, deplores, downpours, drugstores, encor's, encores, explores, eyesores, foreshores, fossores, ignores, implores, indoors, katorz, lakeshores, languors, mentor's, mentors, moidores, nemours, nucor's, nymwars, oospores, outdoors, outpours, outscores, phosphors, pledgors, pomorze, praetores, quatorze, rancours, raptores, restores, rigours, seashores, secours, sectaurs, senhors, senores, smoothbores, sophomores, splendours, sporophores, strisores, subfloors, succours, timor's, toystores, trapdoors, uproars, vapours, wherefores, zoospores

3 syllables:
albacores, ankylosaurs, archosaurs, ascospores, baltimore's, bangalore's, bangalores, battledores, brontosaurs, carnivores, carrefours, centocor's, chromophores, clamatores, commodore's, commodores, counterbores, dinosaurs, dinozaurs, dracohors, dumbledores, ecuador's, four-by-fours, frugivores, gemitores, grallatores, grzegorz, guarantors, hackamores, herbivores, infowars, insessores, labradors, levatores, macrospores, madrepores, manticores, matadores, megaspores, megastores, micropores, microspores, minotaurs, natatores, omnivores, out-of-doors, pescadores, pinafores, piscivores, plesiosaurs, pompadours, pterosaurs, rotatores, saboteurs, sagamores, salvador's, semaphores, stegosaurs, stevedores, strepitores, superstores, sycamores, sycomores, tetraspores, traditores, trochophores, troubadours, two-by-fours, underdrawers, underscores, unprofor's, withindoors, withoutdoors, zygospores

4 syllables:
chlamydospores, chromatophores, ctenophores, detritivores, ichthyocentaurs, ichthyosaurs, insectivores, ionophores, jakovasaurs, kinetochores, laniatores, libertadores, megalosaurs, ommatophores, siderophores, speculatores, spermatophores, teliospores, tyrannosaurs

5 syllables:
basidiospores

1 syllable:
bars, cares, airs, wares, fears, ers, peers, years, stairs, shares, stars, shears, theirs, cheers, hairs, furze, chairs, ears, mars, ares, clears, tears, squares, beers, cures, cars, bears, pairs, gears, heirs, hers, car's, fares, gerres, hears, here's, poor's, prayers, r.'s, r.s, scares, scars, sears, slurs, smears, star's, there's, wears, where's, year's, years'

2 syllables:
upstairs, ours, downstairs, hours, fires, affairs, hires, algiers, wires, repairs, appears, careers, cigars, compares, declares, frontiers, guitars, inspires, occurs, prefers, prepares, refers, requires, tangiers, transfers, velours, weltschmerz

3 syllables:
unawares, volunteers, disappears, engineers, helicteres, millionaires, npr's, pinnotheres, pioneers, questionnaires, souvenirs, superstars

4 syllables:
entrepreneurs