1 syllable:
arres, blars, blurs, burres, burrs, chirrs, chors, churrs, cires, corrs, durres, ers, firs, fleurs, flirs, fnars, fors, furr's, furrs, furs, furze, her's, hers, herz, heures, jours, jurs, kerze, khmers, khors, kurz, lurz, mers, merz, murres, myrrhs, perz, psers, purrs, scherz, schmerz, schreurs, schurz, shirrs, shors, slurs, spors, spurs, stirs, sturz, thors, thurs, tsars, tzars, whirrs, whirs, wirz, wurz, years, yours

2 syllables:
absturz, amperes, auteurs, chauffeur's, chauffeurs, claqueurs, cockspurs, coiffeurs, concurs, confers, danseurs, defers, demurs, deters, discours, diseurs, fahlerz, farceurs, frondeurs, frotteurs, gepurs, hotspurs, incurs, infers, jongleurs, kaffirs, kafirs, koncerz, larkspurs, liqueurs, longspurs, longueurs, messieurs, moeurs, monsieurs, occurs, plusieurs, poseurs, prefers, primeurs, recurs, refers, seigneurs, transfers, weltschmerz

3 syllables:
accoucheurs, amateurs, colporteurs, connoisseurs, eisenerz, headhunterz, megaherz, messeigneurs, millefleurs, mittelschmerz, pasticheurs, rapporteurs, reoccurs, restauranteurs, restaurateurs, saboteurs, voyageurs, whisperer's, whisperers, zelooperz

4 syllables:
amesoeurs, arbitrageurs, carillonneurs, entrepreneur's, entrepreneurs, francs-tireurs, intrapreneurs, litterateurs, provocateurs

5 syllables:
list of ethnic slurs

6 syllables:
san antonio spurs

1 syllable:
hoarse, source, parse, shorts, horse, quartz, hearts, ports, martes, fierce, darts, hertz, gorse, peirce, bourse, sparse, sports, charts, scarce, pierce, tierce, corse, farce, coarse, force, sorts, parts, cortes, arse, courts, course, morse, arts, norse, airs, ares, bars, bears, beers, car's, cares, cars, chairs, cheers, chores, clears, corps, cures, doors, drawers, ears, fares, fears, fires, floors, fours, gears, gerres, gore's, hairs, hears, heirs, here's, hires, hours, mars, ours, pairs, peers, poor's, prayers, r.'s, r.s, scares, scars, scores, sears, shares, shears, shores, smears, squares, stairs, star's, stars, stores, tears, theirs, there's, tours, war's, wares, wars, wears, where's, wires, year's, years'

2 syllables:
sea horse, of course, fine arts, point source, antrorse, endorse, white horse, dark horse, imports, work force, weak force, reports, task force, retrorse, golf course, wheel horse, sales force, post horse, strong force, indorse, in force, divorce, unhorse, beaux arts, old norse, rose quartz, enforce, main course, shire horse, remorse, affairs, algiers, all fours, appears, azores, careers, cigars, compares, declares, downstairs, explores, frontiers, guitars, ignores, inspires, job's tears, least squares, new year's, outdoors, pig's ears, prepares, raptores, repairs, requires, small stores, tangiers, upstairs, velours

3 syllables:
ace of hearts, vital force, trojan horse, private parts, reinforce, harness horse, labor force, pommel horse, saddle horse, vaulting horse, smoky quartz, in due course, line of force, police force, quarter horse, franklin pierce, iron horse, tour de force, rocking horse, river horse, baby's tears, baby tears, balkan wars, charge d'affaires, chest of drawers, common shares, disappears, down the stairs, engineers, flight of stairs, golden stars, helicteres, intra vires, in arrears, in both ears, kick downstairs, kick upstairs, millionaires, npr's, out-of-doors, out of doors, pinnotheres, pioneers, preferred shares, pruning shears, punic wars, put on airs, questionnaires, rabbit ears, souvenirs, stars and bars, superstars, to both ears, ultra vires, unawares, underscores, up the stairs, volunteers, world affairs

4 syllables:
liberal arts, matter of course, bermuda shorts, master of arts, by fits and starts, refresher course, radio source, authorized shares, man of affairs, musical chairs, parallel bars, preference shares, put behind bars, sincerely yours, state of affairs, treasury shares

5 syllables:
bachelor of arts, correspondence course, centrifugal force, anterior nares, elegant cat's ears, method of least squares, music of the spheres, ordinary shares, posterior nares, wet behind the ears

6 syllables:
gravitational force, tennessee walking horse, napoleonic wars

7 syllables:
american saddle horse, international affairs, master in public affairs, veterans of foreign wars

9 syllables:
department of veterans affairs

10 syllables:
secretary of veterans affairs