2 syllables:
praenares, zipcar's, zipcars

3 syllables:
collapsars

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

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

3 syllables:
unawares, volunteers, disappears, engineers, helicteres, millionaires, npr's, out-of-doors, pinnotheres, pioneers, questionnaires, souvenirs, superstars, underscores

4 syllables:
entrepreneurs