1 syllable:
-head, bed, bled, bread, bred, dead, dread, dred, dredd, ed, fed, fled, fread, fred, freda, ged, guede, head, jed, kaede, lead, led, med, ned, nedd, nsaid, nsted, pled, read, reade, redd, redde, said, sched, schwed, shaed, shead, shed, shedd, shred, sled, sledd, sped, spread, stead, swed, szwed, ted, thread, threadx, tread, wed, wedd, wedde, wehde, zed

2 syllables:
abed, addend, adread, ahead, airhead, amedd, anred, anrede, anstead, armstead, ass-head, ausaid, axe head, ax head, backspread, baghead, bald-head, baldhead, bankhead, banstead, barehead, barrhead, beachhead, beak-head, beakhead, beckstead, bedhead, bedspread, bedstead, bee-bread, beebread, behead, bespread, big-head, bighead, billhead, bitthead, black-lead, blackhead, blacklead, black bread, black lead, blockhead, blood-red, bloodshed, bluehead, bobsled, bolthead, bonehead, boobed, boofhead, bow-head, bowhead, boxhead, braehead, brain-dead, braindead, brain dead, breadhead, break bread, breastfed, bridebed, bridgehead, bright-red, broadhead, broadspread, brodhead, brown bread, buckhead, bulkhead, bullhead, bumstead, bunk bed, burghead, butt-head, butthead, calfed, camp bed, cathead, cheesehead, cheese spread, childbed, clapbread, clip lead, clouddead, club-head, clubhead, club head, cockhead, cockshead, coed, cokehead, colead, comfed, con-ed, confed, cornbread, cornfed, courtbred, cow's head, crackhead, craghead, craighead, creek bed, crispbread, crossbred, crosshead, crowned head, cuphead, dark bread, date bread, day bed, deadhead, death's head, deathbed, dechead, deckhead, deep-read, delmed, despread, dispread, doorstead, dopehead, dotehead, drawhead, drop-dead, drop-head, dropdead, drophead, drop dead, drumhead, dullhead, dumbhead, earthbred, egghead, embed, embread, farmstead, fathead, firstfed, flatbed, flatbread, flathead, flinthead, floodhead, foodshed, foreread, foresaid, forkhead, fortread, french bread, frybread, fry bread, fuckhead, gainsaid, gateshead, gearhead, gilthead, gisaid, glenfed, goathead, godhead, goldthread, goodbread, gorsedd, greenhead, grinstead, grouthead, gwynedd, half-bred, half-dead, half-read, hampstead, hardhead, hard lead, hash head, hellbred, high-bred, high-red, highbred, hogshead, holstead, home-bred, homebred, homefed, homestead, hophead, horse-head, horsebread, horsehead, hot-head, hotbed, hothead, hungred, ill-bred, imbed, inbred, instead, jarhead, jolthead, judge dredd, jughead, juicehead, kerfed, knighthead, knobhead, krauthead, lakehead, lake bed, lamedh, lawhead, lie-abed, light bread, linebred, link-dead, lip-read, lipread, lochhead, longhead, loosehead, lowbred, lunkhead, manhead, manred, masthead, meathead, milstead, minehead, misdread, misled, misread, miswed, moorehead, moorhead, moosehead, mophead, moshed, mudhead, muirhead, must-read, nail-head, nailhead, nedved, netdead, nethead, newstead, node-red, noonstead, numed, nut bread, olmstead, onstead, oread, ore bed, ounsted, outspread, oxhead, packthread, panhead, peghead, pierhead, pig bed, pig lead, pill head, pinhead, pink-red, pithead, playdead, playhead, plowhead, plumstead, pot-head, pothead, premed, printhead, pure-bred, purebred, pushead, pyspread, quick bread, raghead, railhead, rawhead, re-tread, redhead, red lead, replead, retread, ringhead, roadbed, roadstead, rose-red, rosehead, rose bed, roughhead, roundhead, runghead, rust-red, rye bread, saphead, sayed, scarehead, scimed, screwhead, screw thread, seabed, senedd, sheephead, sheepshead, sheetfed, shewbread, shinehead, shock-head, shortbread, shorthead, shovelhead, showbread, sigfred, sight-read, skinhead, skullhead, skunkhead, slaphead, sleigh bed, smackhead, snake-head, snakehead, snaphead, softhead, soothsaid, sorehead, sourbread, sourcefed, sowbread, spearhead, speech-read, speed-read, spithead, spoonfed, spoon bread, spreadhead, springhead, springstead, staghead, stairhead, stakehead, star-read, steelhead, stephead, stone-dead, stop dead, stourhead, subhead, suedehead, sunbed, sunsted, sweetbread, swelled head, swellhead, tancred, testbed, test bed, thickhead, thickspread, toadhead, toolhead, tough-head, tow-head, towelhead, towhead, trailhead, truck bed, true-bred, truebred, twin-lead, twin bed, umstead, unbred, undead, unfed, unhead, unlead, unread, unsaid, unted, unthread, unwed, upthread, viread, vivaed, volstead, wanstead, warhead, waybread, waynehead, webhead, well-bred, well-read, wellbred, wellhead, westfed, whitbread, white-bread, whitebread, whitehead, white bread, white lead, widespread, wine-red, wingspread, winstead, winsted, woodhead, woodshed, woolhead, wowhead, wronghead

3 syllables:
abovesaid, acid-head, acidhead, acid head, addle-head, addlehead, aforesaid, armed bullhead, armested, armistead, arrow-head, arrowhead, baby's bed, baby bed, barrelhead, batter bread, beastlihead, beetle-head, beetlehead, bellowhead, billethead, biomed, birkenhead, blackish-red, blodeuwedd, blunderhead, bobblehead, bonnethead, boroughhead, bottlehead, bronze-red, brownish-red, brown bullhead, bubblehead, buckethead, bufferhead, bufflehead, built in bed, bullethead, cadenhead, calibred, campaned, chaos;head, cherry-red, chinese-red, chowderhead, christiansted, chris bumstead, chuckle-head, chucklehead, cittern-head, city-bred, cityfed, copperhead, coral-red, country-bred, cubbridge-head, cuckoo bread, cynghanedd, dittohead, divan bed, double bed, dragon's head, dragonhead, drearihead, drowsihead, drunkenhead, dumbfoundead, dunderhead, duramed, englbred, enisled, evil dead, feather-head, featherbed, featherhead, feather bed, fiddlehead, figurehead, filter bed, flowerbed, flower head, fountainhead, garlic bread, get ahead, giddy-head, gingerbread, girdlestead, gluten bread, glycomed, go-ahead, godlyhead, golden thread, go ahead, go to bed, graham bread, hammerhead, harddihead, head-to-head, head lice, hilton-head, hilton head, hollingshead, hollinshead, hollyhead, holyhead, hornyhead, human head, humblehead, infra-red, infrared, interbed, interbred, in the head, in the lead, jerkinhead, jollyhead, jolterhead, jumper lead, knucklehead, laverbread, leatherhead, left 4 dead, letterhead, live/dead, loaf of bread, lochgilphead, loggerhead, lookahead, lowlihead, lustihead, maidenhead, marblehead, marketstead, marriage bed, merestead, metalhead, metroid dread, mistihead, monkey-bread, monkey bread, mothershead, mothershed, motorhead, muddlehead, multithread, murphy bed, mushroomhead, muttonhead, negrohead, neverdead, newlywed, niggerhead, noodlehead, onion bread, oramed, orange-red, overbred, overfed, overhead, overspread, overtread, oysterhead, oyster bed, pencil lead, peterhead, petrolhead, phantom thread, pilot bread, pirouetted, pissabed, platform bed, plow ahead, pocket bread, pointy-head, poppy-head, poppyhead, portishead, powerhead, pudden-head, pudding-head, pudding head, purple-red, railroad bed, raisin bread, rattlehead, repair shed, riverbed, riverhead, rivethead, rotor head, ruby-red, rudderhead, running head, saddlebred, seemlyhed, set ahead, sffed, showerhead, sick-abed, silverhead, singlethread, single bed, skillet bread, sleepyhead, slugabed, sofabed, sofa bed, sounding lead, spectramed, staggered head, stagger head, standard-bred, standardbred, straight-ahead, sudafed, swinebread, talking head, thoroughbred, thrust ahead, thunderhead, timberhead, travelstead, trippie redd, trundlehead, trundle bed, tulip bed, turnip bed, turtlehead, type-ahead, underbred, underfed, underhead, unionfed, unpruned, wanlockhead, waterbed, waterhead, watershed, water bed, weatherhead, whole meal bread, whole wheat bread, wirehead, woodenhead, woolly-head, yellowhead, zebrahead, zipperhead

4 syllables:
agnes moorehead, anthony head, ash vs evil dead, banana bread, boston brown bread, cinnamon bread, cylinder head, department head, disk overhead, enkerchiefed, eraserhead, false dragonhead, false dragon head, far-infrared, get into bed, heels over head, hospital bed, italian bread, jewish rye bread, magnetic head, medusahead, near-infrared, nominal head, propellerhead, quilted bedspread, radiohead, seminole bread, shaun of the dead, skillet corn bread, sugar of lead, swedish rye bread, the evil dead, the living dead, those who wish me dead, without bloodshed

5 syllables:
alveolar bed, army of the dead, asparagus bed, atomic warhead, bacteria bed, beavis and butt-head, capillary bed, caraway seed bread, caterpillar tread, command overhead, common arrowhead, fear the walking dead, highschool of the dead, irish soda bread, mahogany-red, nuclear warhead

6 syllables:
escape from spiderhead, night of the living dead

7 syllables:
thermonuclear warhead

8 syllables:
command processing overhead, mary elizabeth winstead

9 syllables:
anotherloverholenyohead, the detective is already dead