1 syllable:
air's, airs, ayer's, ayres, baires, bares, bear's, bears, bears', berres, blair's, blares, bures, care's, cares, chaires, chairs, chares, claire's, dares, errs, eyres, fair's, faires, fairs, fares, feres, flairs, flares, freres, gares, gehres, gerres, glares, h-shares, hair's, hairs, hare's, hares, heirs, jares, jears, kehres, lairs, lares, lehrs, maerz, mairs, mare's, mares, nairs, pairs, pares, pears, phares, prayers, rairs, rares, sayres, scares, sgares, share's, shares, shares', sherr's, snares, spares, squares, stairs, stares, swears, tears, terres, theirs, there's, theres, verres, wares, wears, where's, wheres, xers

2 syllables:
affair's, affaires, agares, airfares, armchairs, backstairs, bancshares', bankshares, bewares, broadstairs, broodmares, bugbears, bulgars, caleres, carfares, compares, crosshairs, d'affaires, daffaires, daycares, deckchairs, declares, derrieres, despairs, downstairs, eclairs, ensnares, fanfares, fieldfares, forbears, forebears, forswears, frogwares, frontieres, funfairs, gaiares, healthcare's, highchairs, housewares, impairs, ishares, job's tears, least-squares, least squares, longhairs, markair's, menieres, moliere's, molieres, mujeres, nightmares, nowheres, outstares, parterres, pierre's, pierres, portieres, prepares, proshares, pushchairs, repairs, software's, somewheres, tenncare's, the heirs, time-shares, timeshares, unwares, upstairs, wheelchairs

3 syllables:
anywheres, armentieres, baby's tears, baby tears, betashares, billionaires, boutonnieres, charge d'affaires, common shares, cyaxares, delaware's, delawares, doctrinaires, down the stairs, flight of stairs, gemmipares, gondophares, jordanaires, kick downstairs, kick upstairs, legionnaire's, legionnaires, leochares, luminaires, medicare's, metameres, millionaire's, millionaires, overbears, populares, preferred shares, put on airs, questionnaires, regulares, save your tears, self-affairs, solitaires, sphecotheres, teddybears, thoroughfares, tubinares, unawares, understairs, underwears, up the stairs, usair's, we bare bears

4 syllables:
acridotheres, americares, authorized shares, commissionaires, concessionaires, fiduciares, kitchen nightmares, little nightmares, musical chairs, peninsulares, preference shares, treasury shares

5 syllables:
consumeraffairs, euromobiliare's, method of least squares, multimillionaires, ordinary shares, the world's billionaires

1 syllable:
mars, clears, beers, tours, wars, shears, cheers, drawers, ares, cars, gears, corps, peers, scores, stars, furze, yours, bars, stores, doors, fears, years, ers, ears, cures, hers, car's, chores, floors, fours, gore's, hears, here's, poor's, r.'s, r.s, scars, sears, shores, slurs, smears, star's, war's, year's, years'

2 syllables:
hours, fires, outdoors, wires, all fours, algiers, ours, hires, azores, appears, careers, cigars, explores, frontiers, guitars, ignores, inspires, new year's, occurs, pig's ears, prefers, raptores, refers, requires, small stores, tangiers, transfers, velours, weltschmerz

3 syllables:
rabbit ears, out of doors, intra vires, in arrears, chest of drawers, stars and bars, pruning shears, ultra vires, volunteers, balkan wars, disappears, engineers, golden stars, helicteres, in both ears, npr's, out-of-doors, pinnotheres, pioneers, punic wars, souvenirs, superstars, to both ears, underscores

4 syllables:
parallel bars, entrepreneurs, put behind bars, sincerely yours

5 syllables:
music of the spheres, anterior nares, elegant cat's ears, posterior nares, wet behind the ears

6 syllables:
napoleonic wars

7 syllables:
veterans of foreign wars