1 syllable:
ares, baars, bar's, barr's, barres, barrs, bars, barz, car's, carr's, carrs, cars, cars', charrs, chars, czar's, czars, far's, gars, gnars, guars, haars, jaars, jars, jmaars, jstars, kaars, kahr's, kahrs, laars, lars, lcars, maars, marres, marrs, mars, mars', marz, mg cars, nars, ours, paars, par's, parrs, pars, quarz, r's, r.'s, r.s, sars, scars, spars, staar's, star's, starr's, starrs, stars', starz, star wrs, tahrs, thars, thouars, vars, z-cars

2 syllables:
abars, adars, afars, aldars, all-stars, alvars, amar's, amarres, asars, astars, azhar's, babar's, baibars, balkars, bazaars, bazars, beastars, blazars, boxcars, busbars, chukars, cigars, cigars', cottars, crossbars, crowbars, darkstars, deathstars, debars, denars, devoirs, dinars, disbars, durbars, dzhokhar's, feldspars, fiars, gaidar's, guitars, handcars, hectares, instars, ipars, jabar's, jaguar's, jaguars, jumars, lamar's, lamars, lazars, loadstars, lodestars, magyars, malars, melkar's, memoires, memoirs, minstar's, miroirs, mizar's, myanmar's, nightjars, northstar's, opars, pan-starrs, peignoirs, pieds-noirs, pop/stars, popstars, prankstars, prostars, qintars, racecars, radars, railcars, rebars, renoirs, sambars, sandbars, seskar's, shahar's, shofars, sidebars, sitars, sizars, sonars, streetcars, tbars, techstars, tigar's, tokars, toolbars, tramcars, trocars, unbars, velars, voussoirs, windstar's

3 syllables:
abattoirs, aerostar's, aerostars, alcazars, alpinestars, autocars, avatars, bryanstars, caviares, caviars, cinnabars, cojimar's, counting cars, escobar's, handle-bars, handlebars, hekmatyar's, humsafars, isobars, jaguar cars, kosovars, lotus cars, malabars, megastars, metrostars, millibars, minibars, minicars, morningstar's, motorcars, nayanars, npr's, pokerstars, protostars, registrars, reservoirs, ricercars, samovars, scimitars, seminars, sidecars, stars and bars, supercars, superstars, volvo cars, xchocobars

4 syllables:
almogavars, almucantars, parallel bars, put behind bars

5 syllables:
antimacassars, nebuchadnezzars, rolls-royce motor cars, teleseminars

6 syllables:
human mission to mars, thirty seconds to mars

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

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

3 syllables:
rabbit ears, out of doors, common shares, intra vires, charge d'affaires, in arrears, kick upstairs, chest of drawers, pruning shears, unawares, ultra vires, volunteers, preferred shares, baby's tears, baby tears, balkan wars, disappears, down the stairs, engineers, flight of stairs, helicteres, in both ears, kick downstairs, millionaires, out-of-doors, pinnotheres, pioneers, punic wars, put on airs, questionnaires, souvenirs, to both ears, underscores, up the stairs, world affairs

4 syllables:
authorized shares, preference shares, treasury shares, state of affairs, musical chairs, entrepreneurs, man of affairs, sincerely yours

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