1 syllable:
-head, 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, red, 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, brick red, bridebed, bridgehead, bright-red, broadhead, broadspread, brodhead, brown bread, buckhead, bulkhead, bullhead, bumstead, burghead, butt-head, butthead, calfed, cathead, cheesehead, cheese spread, childbed, chrome red, 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, crispbread, crossbred, crosshead, crowned head, cuphead, dark bread, dark red, date bread, deadhead, death's head, deathbed, dechead, deckhead, deep-read, deep red, 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, 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, ounsted, outspread, oxhead, packthread, panhead, peghead, pierhead, 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, roughhead, roundhead, runghead, rust-red, rye bread, saphead, sayed, scarehead, scimed, screwhead, screw thread, seabed, see red, senedd, sheephead, sheepshead, sheetfed, shewbread, shinehead, shock-head, shortbread, shorthead, shovelhead, showbread, sigfred, sight-read, skinhead, skullhead, skunkhead, slaphead, 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, thickhead, thickspread, toadhead, toolhead, tough-head, tow-head, towelhead, towhead, trailhead, true-bred, truebred, twin-lead, 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, 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, bullethead, cadenhead, calibred, campaned, chaos;head, cherry-red, cherry red, chinese-red, chowderhead, christiansted, chris bumstead, chuckle-head, chucklehead, cittern-head, city-bred, cityfed, congo red, copperhead, coral-red, country-bred, cubbridge-head, cuckoo bread, cynghanedd, dittohead, dragon's head, dragonhead, drearihead, drowsihead, drunkenhead, dumbfoundead, dunderhead, duramed, englbred, enisled, evil dead, feather-head, featherbed, featherhead, fiddlehead, figurehead, flowerbed, flower head, fountainhead, garlic bread, get ahead, giddy-head, gingerbread, girdlestead, gluten bread, glycomed, go-ahead, godlyhead, golden thread, go ahead, 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, merestead, metalhead, metroid dread, mistihead, monkey-bread, monkey bread, mothershead, mothershed, motorhead, muddlehead, multithread, mushroomhead, muttonhead, negrohead, neverdead, newlywed, niggerhead, noodlehead, onion bread, oramed, orange-red, orange red, overbred, overfed, overhead, overspread, overtread, oysterhead, pencil lead, peterhead, petrolhead, phantom thread, pilot bread, pirouetted, pissabed, plow ahead, pocket bread, pointy-head, poppy-head, poppyhead, portishead, powerhead, pudden-head, pudding-head, pudding head, purple-red, purplish red, raisin bread, rattlehead, repair shed, riverbed, riverhead, rivethead, rotor head, ruby-red, rudderhead, running head, saddlebred, seeing red, seemlyhed, set ahead, sffed, shades of red, showerhead, sick-abed, silverhead, singlethread, skillet bread, sleepyhead, slugabed, sofabed, 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, turkey red, turtlehead, type-ahead, underbred, underfed, underhead, unionfed, unpruned, wanlockhead, waterbed, waterhead, watershed, 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, heels over head, indian red, italian bread, jewish rye bread, magnetic head, medusahead, near-infrared, nominal head, propellerhead, quilted bedspread, radiohead, rhode island red, 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, venetian red, without bloodshed

5 syllables:
army of the dead, atomic warhead, beavis and butt-head, 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, vice-admiral of the red

8 syllables:
command processing overhead, mary elizabeth winstead

9 syllables:
anotherloverholenyohead, the detective is already dead