1 syllable:
noirs

2 syllables:
boudoirs

1 syllable:
airs, ares, bars, bears, beers, car's, cares, cars, chairs, cheers, chores, clears, corps, cures, doors, drawers, ears, ers, fares, fears, fires, floors, fours, furze, gears, gerres, gore's, hairs, hears, heirs, here's, hers, hires, hours, mars, ours, pairs, peers, poor's, prayers, r.'s, r.s, scares, scars, scores, sears, shares, shears, shores, slurs, smears, squares, stairs, star's, stars, stores, tears, theirs, there's, tours, war's, wares, wars, wears, where's, wires, year's, years, years', yours

2 syllables:
affairs, algiers, all fours, appears, azores, careers, cigars, compares, declares, downstairs, explores, frontiers, guitars, ignores, inspires, job's tears, least squares, new year's, occurs, outdoors, pig's ears, prefers, prepares, raptores, refers, repairs, requires, small stores, tangiers, transfers, upstairs, velours, weltschmerz

3 syllables:
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:
authorized shares, entrepreneurs, man of affairs, musical chairs, parallel bars, preference shares, put behind bars, sincerely yours, state of affairs, treasury shares

5 syllables:
anterior nares, elegant cat's ears, method of least squares, music of the spheres, ordinary shares, posterior nares, wet behind the ears

6 syllables:
napoleonic wars

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

9 syllables:
department of veterans affairs

10 syllables:
secretary of veterans affairs