1 syllable:
air, ayr, bare, bear, beer, bier, birr, blair, blare, blear, blur, boar, boer, boor, bore, bur, burr, care, chair, cheer, chirr, chore, churr, claire, clear, core, corps, crore, cur, cure, dare, dear, deer, dire, doer, door, dour, dower, drawer, drear, ear, er, err, fair, fare, fear, fehr, fir, fire, flair, flare, floor, flour, for, fore, four, freyr, fur, gear, gere, glare, gore, greer, grier, hair, hare, hear, heir, here, herr, hire, hoar, hour, ire, jeer, jour, lair, lear, lohr, loire, lore, lour, lure, lyre, mare, meir, mere, mir, mire, moire, moor, moore, more, murre, myrrh, ne'er, near, nor, oar, or, ore, pair, pare, pear, peer, per, pier, poor, pore, pour, prayer, pure, purr, queer, quire, rare, rear, roar, ruhr, scare, schmear, schorr, score, scour, sear, seer, sere, share, shear, sheer, sherr, shire, shirr, shmear, shore, sir, slur, smear, snare, sneer, snore, soar, sore, sour, spare, spear, sphere, spire, spoor, spore, spur, square, squire, stair, stare, steer, stir, store, sure, swear, swore, tear, their, there, they're, thor, tier, tor, tore, torr, tour, tyre, veer, war, ware, we're, wear, weir, were, where, whirr, whore, wire, wore, year, yore, you're, your

2 syllables:
slather, gaffer, rasher, rather, nasser, chaffer, bather, kafir, smasher, lasher, placer, lather, crasher, ashur, gather, thrasher, blather, flasher, masher, azure, passer, kaffir, staffer, abhor, abjure, abor, adhere, adjure, admire, adore, affair, affaire, afire, aflare, air corps, allure, all clear, amir, amour, ant bear, appear, ashir, ashore, ask for, aspire, assur, assure, astaire, astir, austere, au pair, aware, back door, barn door, bath chair, beach chair, bear's ear, before, besmear, beware, big sur, birch beer, black bear, black maire, blue air, bock beer, boer war, bonaire, bonheur, brochure, bronx cheer, brown bear, brumaire, bugbear, bus fare, cab fare, called for, call for, calm air, camp chair, cared-for, career, care for, car care, car door, cashier, cat bear, chauffeur, child care, church year, class war, cohere, coiffeur, coiffure, cold sore, cold war, come near, compare, compeer, compere, concur, confer, cooccur, coon bear, couture, cross hair, cry for, dance floor, danseur, dark beer, day care, death chair, deck chair, declare, decor, defer, demur, demure, deplore, derriere, despair, deter, detour, de jure, done for, downstair, draw near, dressed ore, due care, dutch door, each year, eclair, emir, endear, endure, ensnare, ensure, exmoor, expire, explore, faith cure, fakeer, fall for, false hair, feel for, fend for, first floor, first gear, flexure, footgear, footsure, forbear, forswear, for sure, fourscore, foursquare, french door, frontier, front door, frotteur, galore, give care, give ear, got your, go for, grandeur, grand fir, grand tour, gravure, great bear, great care, great war, great year, grope for, ground fir, ground floor, guard hair, guinier, gum myrrh, hachure, hair care, half door, handwear, health care, held dear, high gear, hold dear, horsehair, hot-wire, hot air, hot war, houhere, ice bear, ignore, igor, immure, impair, implore, impure, incur, infer, inhere, inquire, inshore, inspire, insure, inter, inure, joint fir, kildeer, killdeer, king's spear, languor, lawn chair, lead ore, leap year, lenore, life peer, light air, light beer, light year, liqueur, longed-for, longueur, look for, lord's prayer, lounge chair, low gear, make for, make pure, make sure, manure, markhoor, marsh hare, mature, menhir, mens store, midair, moliere, monsieur, mouse deer, mouse ear, mouse hare, mule deer, musk deer, near beer, nervure, next door, no more, o'hare, obscure, occur, offshore, once more, on tour, opt for, outroar, outscore, pap smear, parterre, pasteur, pay for, peace corps, perspire, per year, pierre, pindar, plump for, plunk for, poseur, postwar, prefer, premier, premiere, prepare, press corps, prewar, price war, procure, pushchair, put your, quest for, rancour, rapport, recur, red deer, red scare, refer, rehear, repair, require, respire, rest-cure, restore, retire, revere, rigour, roe deer, root beer, root hair, run for, safire, salvor, sambur, sapir, schenk beer, school year, scotch fir, screen door, sea hare, secure, seigneur, send for, senor, set square, severe, shamir, shoe store, shoot for, shop floor, side chair, side door, sightseer, sincere, skin care, skunk bear, slight care, sloth bear, small beer, smoothbore, soilure, speak for, spruce beer, spur gear, squeeze for, stage door, stand for, straight chair, stud mare, succour, sun gear, swamp hare, sweep oar, swing door, t-square, take care, take for, tangier, tarsier, testiere, that you're, that your, third gear, threescore, times square, tonsure, train fare, transfer, trap door, trochlear, true fir, try for, try square, tussore, twoscore, unclear, unfair, unsure, upstair, up here, vanir, vapour, velour, veneer, vigour, voltaire, voyeur, wafture, wasteweir, weiss beer, what's your, what for, what you're, wheatear, white fir, white maire, white squire, wild boar, wing chair, word square, world war, worm gear, yacht chair, yasir, zaire

3 syllables:
brown thrasher, cadaver, abampere, account for, air-to-air, allosaur, allow for, alpine fir, amanpour, ankylosaur, answer for, anymore, apgar score, archosaur, arctic hare, auctioneer, balladeer, balsam fir, balsam pear, bandoleer, bandolier, barber chair, barking deer, barosaur, bartlett pear, bartle frere, baseball score, basketeer, baudelaire, belgian hare, belvedere, bevel gear, bevel square, billionaire, bill of fare, blackamoor, bombardier, bowling score, brigadier, bring to bear, brontosaur, buccaneer, budget for, buffer store, burro deer, cafe noir, camel's hair, candy store, cannoneer, captain's chair, carte du jour, cavalier, chandelier, chevalier, chinaware, christian year, civil war, civil year, clothing store, cockleburr, coinsure, come before, come in for, commandeer, common year, compressed air, connoisseur, country store, cover for, crimean war, croix de guerre, crystal clear, cry out for, debonair, debonaire, debonnaire, dental care, disappear, discount store, disrepair, doctrinaire, domineer, double door, douglas fir, duty tour, easy chair, edward lear, elaphure, embouchure, encolure, engineer, evening prayer, ex-mayor, fallow deer, far and near, feeding chair, financier, fire door, first world war, fiscal year, fishing gear, flower store, flying mare, folding chair, folding door, football score, force majeure, fraser fir, gadgeteer, garden chair, gazetteer, giant fir, ginger beer, god of war, gomphothere, gondolier, gondoliere, go to war, green manure, grizzly bear, guarantor, guinevere, hadrosaur, halberdier, hardware store, harpooneer, haute couture, have been there, head of hair, heretofore, hold still for, holy year, honey bear, hoped-for, house of prayer, immature, inner ear, insincere, interfere, in one ear, in the air, iron ore, kieselguhr, know the score, laissez-faire, laissez faire, landing gear, last frontier, latin square, lavalier, leisure wear, liquid air, liquor store, little bear, looked-for, looking for, louis d'or, love affair, lowland fir, lunar year, magic square, mal de mer, man-of-war, marine corps, market square, marston moor, megathere, middle ear, millionaire, more and more, morning prayer, morris chair, muleteer, munich beer, musketeer, mutineer, native bear, native pear, nom de guerre, nothosaur, nursing care, ocean floor, open-air, open air, open door, outer ear, outside door, overbear, overhear, over here, package store, pamphleteer, panda bear, paramour, parquet floor, peacock ore, persevere, petit four, pied-a-terre, pinot noir, pioneer, pistoleer, planet gear, plesiosaur, polar bear, polar hare, porte-cochere, porter's beer, potty chair, powder store, premature, prepare for, presbyter, prickly pear, privateer, profiteer, provide for, pterosaur, pubic hair, public square, puff of air, puppeteer, questionnaire, racketeer, raconteur, re-explore, reappear, reassure, reinsure, restaurateur, retail store, river pear, rocking chair, rouge et noir, saboteur, saddle sore, savoir-faire, scrutineer, seckel pear, second gear, secretaire, sedan chair, seismosaur, service door, set afire, set ashore, silver fir, sinecure, six day war, sliding door, sloganeer, sloop of war, snowshoe hare, solar flare, solar year, solitaire, sonneteer, sorry for, soup du jour, souvenir, spanish war, stable gear, standing for, state of war, steering gear, stegosaur, stinging hair, subway fare, swinging door, swivel chair, take a dare, take the floor, tamanoir, taxi fare, teddy bear, tidal bore, time of year, to be sure, to one ear, trojan war, tug-of-war, unaware, uncalled-for, underscore, volt-ampere, volunteer, walk on air, warrantor, water deer, wear and tear, what is more, whitetail deer, white lead ore, wicket door, windsor chair, wirehair, wished-for, without fear, with great care, woody pear, woolly bear, world premiere, yearned-for

4 syllables:
laissez passer, atom smasher, misbehaviour, anchovy pear, apatosaur, basketball score, black marketeer, brace oneself for, buffalo bur, calendar year, camera care, candidature, carabineer, carpenter's square, celestial sphere, ceramic ware, ceratosaur, cervical smear, charioteer, cinnamon bear, coffee liqueur, come to the fore, commissionaire, computer store, concessionaire, convenience store, conventioneer, corythosaur, department store, dromaeosaur, earning per share, electric chair, elephant's ear, elephant ear, entrepreneur, esprit de corps, every year, external ear, financial year, flight engineer, gala affair, general store, going ashore, green douglas fir, grocery store, hospital care, hundred years' war, ichthyosaur, ictodosaur, internal ear, in disrepair, japanese deer, jewelry store, jewish new year, kangaroo bear, kangaroo hare, koala bear, kodiak bear, korean war, kuala lumpur, legal transfer, limited war, litterateur, little chief hare, louis pasteur, lowland white fir, medical care, mexican war, mezzanine floor, milliampere, musical score, orange liqueur, oregon fir, out of thin air, overstuffed chair, pays de la loire, pelycosaur, pere david's deer, persian gulf war, photogravure, platonic year, pneumatic tyre, psittacosaur, reclining chair, red silver fir, rotogravure, second world war, sensory hair, seven years' war, social affair, specialty store, staurikosaur, step to the fore, styracosaur, supersedure, surface-to-air, syrian bear, thirty years' war, tropical sore, tropical year, tyrannosaur, uintathere, uncared-for, unhoped-for, unlooked-for, unwished-for, us marine corps, vanity fair, varying hare, vietnam war, virginia deer, walking on air, warning of war, war to end war, yom kippur war

5 syllables:
antimacassar, academic year, accordion door, alaskan brown bear, alligator pear, army engineer, avocado pear, book of common prayer, building supply store, castle in the air, cauliflower ear, civil engineer, colorado fir, differential gear, diplomatic corps, english civil war, european hare, exterior door, franco-prussian war, heliogravure, highway engineer, implements of war, interior door, kilovolt-ampere, marine engineer, mining engineer, naval engineer, on a higher floor, on a lower floor, ordinary care, oriental sore, pinion and ring gear, planetary gear, political sphere, prisoner of war, privilege of the floor, railroad engineer, reasonable care, responsible for, sabbatical year, santa lucia fir, software engineer, tender loving care, uranium ore

6 syllables:
aerospace engineer, american black bear, astronomical year, battle of marston moor, california white fir, capital of zaire, delusions of grandeur, french and indian war, haberdashery store, inspection and repair, pachycephalosaur, pacific silver fir, peloponnesian war, russo-japanese war, secretary of war, vestibule of the ear

7 syllables:
american civil war, automotive engineer, efficiency engineer, elasticity of shear, electrical engineer, european silver fir, mechanical engineer, military engineer, military volunteer

8 syllables:
aeronautical engineer, metallurgical engineer, reserve officers training corps