Superpowers' rhymes with:
wildflowers, abhors, adheres, admires, adores, aerostar's, aerostars, affair's, affairs, air's, airfares, airs, algiers, amanpour's, amar's, americares, amir's, ansgar's, appears, ares, armchairs, armoires, arrears, assures, auctioneers, avatars, ayer's, ayres, azhar's, azores, baars, babar's, backdoors, backstairs, baltimore's, bancshares, bancshares', bandoliers, bangalore's, bankshares, bar's, bares, barr's, barres, barrs, bars, barz, bassir's, bazaars, bear's, bears, bears', becor's, bednarz, bednorz, beer's, beers, beers', beladur's, bellcore's, beres, berkshires, berres, beshears, biers, billionaires, biosphere's, biospheres, bires, blair's, blares, boers, bombardiers, bookstores, boors, bores, bors, boshears, boxcars, brashears, breshears, brochures, broshears, brushfires, buccaneers, budgeteers, bures, car's, care's, careers, cares, carnivores, carr's, cars, cars', cashier's, cashiers, cashmeres, cavaliers, centaur's, centaurs, centimetres, centocor's, cesarz, chaires, chairs, chargeurs, cheers, choirs, chores, cigars, claire's, clears, clore's, coheres, cohrs, cojimar's, comandeers, commodore's, compares, confreres, contours, conventioneers, coors, cores, corps', costars, crossfire's, cures, czar's, czars, d'affaires, dares, daycares, debeers, declares, deere's, delaware's, delore's, delors, deplores, despairs, detours, dinosaurs, disappears, dogears, door's, doors, dowers, downpours, downstairs, drawers, drugstores, dzhokhar's, ears, ecuador's, eleanor's, electioneers, encor's, encores, endures, engineer's, engineers, engineers', ensnares, ensures, errs, escobar's, esquire's, euromobiliare's, exemplars, explores, fair's, faires, fairs, far's, fares, fears, feldspars, fiduciares, fiers, financiers, finbar's, flares, floors, forebears, four's, fours, frears, freres, frontier's, frontieres, frontiers, fumidors, gaidar's, gancarz, gars, gear's, gears, gehres, glares, gondoliers, goodyear's, gore's, gores, guarantors, guinier's, guitars, hair's, hairs, handlebars, hare's, hares, healthcare's, hears, hectares, heirs, hekmatyar's, here's, hiers, hors, hours', housewares, ignores, impairs, implores, indoors, inspires, insures, interferes, issuers', jabar's, jaguar's, jaguars, jares, jars, jeers, kahr's, kahrs, kehres, kilometres, kohrs, koors, lamar's, lars, lazarz, lear's, legionnaire's, legionnaires, lenarz, liberators, lorimar's, luehrs, luhrs, lures, maerz, magyars, mairs, mare's, mares, markair's, marketeers, marrs, mars, mars', marz, matures, meares, mears, medicare's, megastores, melkar's, memoirs, mentor's, metaphors, metres, miears, millilitres, millimetres, millionaire's, millionaires, minicars, minstar's, mir's, mires, mizar's, moliere's, moore's, moores, moors, mor's, morningstar's, morze, mostar's, moteurs, motorcars, mountaineers, multimillionaires, musketeers, mutineers, myanmar's, myres, nares, nars, nears, nemours, new-years, newswires, nightmares, noirs, northstar's, nosair's, npr's, nucor's, nyers, oars, obscures, ores, outdoors, outpours, outscores, overhears, overtures, pairs, pamphleteers, par's, pares, pars, pears, peers, perseveres, phares, phosphors, pierre's, piers, pioneer's, pioneers, pires, ploughshares, plowshares, polysar's, poor's, poors, pores, posteriors, pours, prayers, premier's, premieres, premiers, prepares, profiteers, puppeteers, queers, questionnaires, r's, r.'s, r.s, rabbitears, racketeers, radars, railcars, reappears, rears, reassures, registrars, renoirs, repairs, reservoirs, restores, retires, reveres, ritenour's, rittenour's, roars, roehrs, rohrs, safire's, salvador's, sars, sayres, scares, scars, schorr's, schweers, scores, sears, sears', secures, seers, seminars, seres, seskar's, seymour's, shahar's, shakespeare's, shamir's, share's, shares, shares', shear's, shears, sherr's, shires, shore's, shores, sidebars, siers, singapore's, sires, sitars, smears, snares, sneers, soars, software's, solarz, somewheres, sommers, sophomores, sores, souvenirs, spares, spears, speirs, spheres, spires, spoor's, spores, squares, squyres, staar's, stairs, star's, stares, starr's, starrs, stars, stars', stears, steers, stires, stolarz, store's, stores, stores', storrs, storz, summiteers, superstars, superstores, sures, swears, sweers, tangiers, tears, telomeres, tenncare's, theirs, there's, thoroughfares, tiers, tigar's, timor's, tokars, tokarz, tour's, tours, toystores, unawares, underscores, unprofor's, upstairs, usair's, vampire's, vampires, vars, veers, veneers, veres, viers, vires, volunteers, wagoneers, war's, wares, wars, wars', wazir's, wears, weglarz, weir's, wheelchairs, where's, whores, wiers, wildflowers, windmere's, windstar's, xers, yassir's, year's, years, years', yoor's, yours, zabar's, zaire's, zorz