1 syllable:
boar, boer, bohr, bore, chlor, chore, cor, core, corps, corr, crore, door, dorr, drawer, floor, flor, for, fore, four, frore, gore, hoar, lohr, lore, moore, mor, more, nor, oar, or, ore, orr, por, pore, pour, roar, saur, schorr, score, shore, smore, snore, soar, sore, spore, store, swore, thor, tor, tore, torr, war, whore, wore, yore, your

2 syllables:
abhor, abor, adore, afore, air corps, and/or, angor, ardour, ashore, ask for, backdoor, back door, bangor, barndoor, barn door, bedsore, before, bezoar, boer war, bookstore, called for, call for, candour, cared-for, care for, car door, centaur, chador, class war, claymore, closed-door, cold sore, cold war, cry for, dance floor, decor, deplore, dior, done for, dressed ore, drugstore, dutch door, encore, explore, eyesore, fall for, feel for, fend for, first floor, folklore, fomor, footsore, foreshore, forswore, fourscore, french door, front door, gabor, galore, got your, go for, great war, grope for, ground floor, half door, hard-core, hardcore, hot war, ignore, igor, implore, indoor, inshore, lahore, lakeshore, languor, lead ore, lenore, longed-for, longshore, look for, make for, mens store, mentor, moidore, mysore, next door, no more, offshore, once more, onshore, opt for, outdoor, outpour, outroar, outscore, pay for, peace corps, phosphor, pledgor, plump for, plunk for, postwar, press corps, prewar, price war, put your, quest for, rapport, restore, run for, salvor, screen door, seashore, send for, senor, shoe store, shoot for, shop floor, side door, smoothbore, soft-core, sophomore, speak for, splendour, squeeze for, stage door, stand for, sweep oar, swing door, take for, tandoor, that your, therefor, therefore, threescore, timor, trapdoor, trap door, try for, tussore, twoscore, uproar, vapour, what's your, what for, wherefor, wherefore, wild boar, world war, zoospore

3 syllables:
account for, albacore, allosaur, allow for, alongshore, ankylosaur, answer for, anymore, apgar score, archosaur, baltimore, bangalore, barosaur, barrymore, baseball score, battledore, blastopore, bowling score, brontosaur, bucentaur, budget for, buffer store, candy store, carnivore, carnosaur, civil war, clothing store, coach-and-four, come before, come in for, commodore, comprador, country store, cover for, crimean war, cry out for, dinosaur, discount store, door-to-door, double door, ecuador, embraceor, evermore, ex-mayor, fire door, first world war, flower store, folding door, football score, frugivore, furthermore, god of war, go to war, guarantor, hackamore, hadrosaur, hardware store, herbivore, heretofore, hold still for, hoped-for, humidor, inocor, iron ore, know the score, labrador, liquor store, livermore, looked-for, looking for, louis d'or, madrepore, man-of-war, manticore, marine corps, matador, mevacor, minotaur, mirador, more and more, nevermore, nothosaur, ocean floor, open door, out-of-door, outside door, package store, parquet floor, peacock ore, petit four, picador, pinafore, plesiosaur, polypore, powder store, prepare for, provide for, pterosaur, re-explore, retail store, saddle sore, salvador, seismosaur, service door, set ashore, singapore, six day war, sliding door, sloop of war, sorry for, spanish war, standing for, state of war, stegosaur, stevedore, superstore, swinging door, sycamore, take the floor, theodore, theretofore, thermidor, the centaur, tidal bore, trojan war, troubadour, tug-of-war, twenty-four, two-by-four, uncalled-for, underscore, unprofor, warrantor, what is more, white lead ore, wicket door, wished-for, yearned-for

4 syllables:
apatosaur, apishamore, basketball score, brace oneself for, ceratosaur, circumferentor, come to the fore, computer store, conquistador, convenience store, corythosaur, department store, dromaeosaur, el salvador, esprit de corps, forevermore, general store, going ashore, green dinosaur, grocery store, hereinbefore, herrerasaur, horned dinosaur, hundred years' war, ichthyosaur, ictodosaur, jewelry store, kinetochore, korean war, limited war, megalosaur, mexican war, mezzanine floor, musical score, pelycosaur, persian gulf war, pisanosaur, psittacosaur, san salvador, second world war, seven years' war, specialty store, staurikosaur, step to the fore, styracosaur, thirty years' war, titanosaur, trichobezoar, tropical sore, tyrannosaur, uncared-for, unhoped-for, unlooked-for, unwished-for, us marine corps, vietnam war, warning of war, war to end war, yom kippur war, young carnivore

5 syllables:
accordion door, argentinosaur, armored dinosaur, building supply store, diplomatic corps, english civil war, exterior door, franco-prussian war, implements of war, interior door, on a higher floor, on a lower floor, oriental sore, prisoner of war, privilege of the floor, responsible for, uranium ore

6 syllables:
french and indian war, haberdashery store, pachycephalosaur, peloponnesian war, russo-japanese war, secretary of war

7 syllables:
american civil war, american sycamore, arizona sycamore, california sycamore, capital of ecuador, capital of singapore

8 syllables:
reserve officers training corps

2 syllables:
arbor, arbour, ardor, arguer, barber, barbour, barker, barter, berber, berger, birder, boarder, border, borger, burger, burgher, carper, carter, charter, corker, darker, darter, durbar, forebear, garter, girder, harbor, harbour, harder, harper, herder, hoarder, larder, lurker, marker, markhor, martyr, mortar, murder, order, ordure, parker, porker, porter, puerto, quarter, sartor, scarper, serger, sharper, shirker, shorter, sirdar, smarter, snorter, sorter, starter, stertor, tartar, torpor, turgor, warder, worker, yarder, yorker

3 syllables:
absorber, ann arbor, bank charter, blue darter, box girder, cardsharper, close order, co-worker, converter, court order, day boarder, departer, disorder, dock worker, enlarger, exporter, farm worker, first quarter, grape arbor, grape arbour, great charter, hall porter, hard worker, importer, inverter, in order, kicksorter, kick starter, large order, last quarter, line worker, mailsorter, mail order, mass murder, new yorker, night porter, nonstarter, pearl harbor, plant order, race murder, rank order, recorder, reorder, reporter, safe harbor, self-starter, skilled worker, snail darter, stop order, suborder, subverter, supporter, tall order, trained worker, transporter, trench mortar, usurper, wool sorter, word order

4 syllables:
batting order, billiard marker, blood disorder, bricks and mortar, civil order, cream of tartar, credit order, draw and quarter, fellow worker, forequarter, fungus order, garment worker, in good order, james earl carter, jimmy carter, latin quarter, magic marker, market order, money order, nosey-parker, nosy-parker, open order, out of order, pecking order, point of order, polymarker, postal order, power worker, pullman porter, purchase order, research worker, rules of order, shock absorber, silverworker, sleep disorder, social worker, speech disorder, standing order, tape recorder, torque converter, unpaid worker, welfare worker

5 syllables:
animal order, bladder disorder, cassette recorder, data converter, every quarter, extended order, factory worker, in working order, manic disorder, mental disorder, miracle worker, natural order, nervous disorder, panic disorder, phobic disorder, religious order, telephone order, temporal order, treble recorder, tv reporter, wire recorder

6 syllables:
acute brain disorder, affective disorder, athletic supporter, bacteria order, bessemer converter, bipolar disorder, conversion disorder, depressive disorder, genetic disorder, glandular disorder, magnetic recorder, rotary converter, sleep terror disorder, temporary worker, violent disorder

7 syllables:
anxiety disorder, catalytic converter, congenital disorder, delusional disorder, distinguished service order, electrical converter, electronic converter, emotional disorder, inherited disorder, medical social worker, schizophrenic disorder, television reporter

8 syllables:
major affective disorder, neurological disorder, personality disorder, posttraumatic stress disorder, psychosomatic disorder, respiratory disorder, videocassette recorder

9 syllables:
attention deficit disorder, gastrointestinal disorder, immunological disorder

11 syllables:
generalized anxiety disorder