1 syllable:
aatcc, baack, bach, balk, balkh, baulk, bloc, bloch, block, blok, bn toc, boch, bock, bohlke, bok, broc, broch, brock, brok, calk, caulk, chalk, chauk, chock, chok, clock, cnwch coch, cock, croc, crock, d-block, dc talk, doc, dock, docke, drawk, drock, f-block, falk, falke, faulk, floc, flock, flocke, fnmoc, frock, fyock, g-loc, g-shock, gawk, glauc, glauque, glock, glocke, gocke, gohlke, groch, grock, guache, h-blockx, haack, haacke, haak, haake, hauck, hauk, hauke, hawk, hawke, hla-c, hoc, hoch, hock, hocke, hok, jacques, jfacc, jock, jrock, jrotc, jspoc, kalk, kauk, kdloc, kloc, klock, klocke, knaack, knaak, knoch, knock, knokke, kock, kok, kroc, krock, krok, kwok, laack, laake, lauck, loch, lock, locke, lok, lokke, maack, mach, mauck, mauk, moch, mock, mock-, mok, njrotc, nock, ntalk, och, pflock, ploch, plock, poch, pock, proch, prock, raakh, rhebok, roc, roch, rock, rocke, rocque, rokke, salk, sauk, schaack, schalk, schlock, schoch, schock, schok, schrock, scroc, shaak, shlock, shock, shrock, skok, skroch, smaak, smock, sock, socke, sok, spaak, spock, sproc, sprock, squawk, srock, staack, stalk, stock, stocke, stockx, stokke, strock, swalk, taake, talk, thwack, tock, troch, valk, vlok, vocke, waack, wache, walk, walke, waulk, wok, ytalk, zoch, zwack

2 syllables:
30 rock, accroc, actalk, ad-hoc, ad-rock, adblock, adcock, adhoc, ad hoc, airlock, air lock, air sock, alcock, allcock, alloc, alt-rock, ansbach, anspach, armlock, arrach, arschloch, arzach, ashlock, auroch, back-talk, backtalk, bad block, ballcock, ballhawk, ball cock, ball hawk, bambach, bangkok, barach, baraque, baumbach, bawcock, baykok, beadlock, beanstalk, bedrock, bedstock, beef stock, beldock, benstock, bergstock, bernbach, bienstock, bierbalk, bierock, bill block, binstock, bitstock, biztalk, blackcock, blackhawk, blacklock, blackrock, blackstock, black cock, blakelock, blakroc, bloodrock, bloodstock, boardwalk, bodach, boondock, bostock, breadtalk, brecknock, breechblock, breeze-block, breitbach, bridgetalk, brumbach, buntrock, buntstrock, buttstock, by-talk, by-walk, byacc, c-block, cakewalk, calstock, capoc, capoch, caprock, cardstock, carlock, casaque, catwalk, cellblock, ceroc, chalk talk, chepauk, chhapaak, ciroc, clarsach, cold-cock, coldcock, colestock, coloc, comstock, cooltalk, corn-stalk, cornstalk, cosaque, crip walk, cross-talk, crosstalk, crosswalk, crushed rock, cumdach, d-loc, d-lock, dadrock, daglock, dambach, dance-rock, darkhawk, deadlock, deadstock, deathlok, dectalk, defalk, defrock, destock, dethklok, diestock, dingtalk, disfrock, doglock, donsbach, dorhawk, dorrhawk, dreadlock, dreisbach, dresbach, drillstock, dry dock, duckwalk, dundalk, earthshock, ebrauke, edraak, einfach, elcock, elflock, enlock, en bloc, erlach, eschbach, escroc, eshbach, estok, eyestalk, fahnestock, fast-talk, fatstock, fauxhawk, feedstock, feschbach, feshbach, fetlock, finefrock, finfrock, fischbach, fish-block, fishhawk, fish hawk, flintlock, folk-rock, folkrock, footstalk, footstock, forehock, foreshock, french chalk, gablock, gamecock, gavelock, genlock, glam rock, glasscock, goldbach, goldstock, goonrock, goshawk, gourock, grauwacke, graywacke, greyhawk, greywacke, gridlock, grimlock, gritrock, growth stock, gunlock, gunstock, haithcock, half-cock, half-stock, halfcock, hamrock, hancock, handcock, harbach, hardrock, hardtalk, haslock, havelock, havelok, haycock, haydock, haystalk, headlock, headstock, heartlock, heart block, hedgecock, heimbach, heinbach, hemlock, hen hawk, herblock, hitchcock, hoolock, hot stock, hurok, iceblock, inlock, iraq, isaak, issaq, istock, izaak, jashawk, jaywalk, jazz-rock, john locke, joint-stock, jokkmokk, kalbach, kalok, karzok, kedlock, kidstock, kirk/spock, klopstock, korokke, kowalke, krautrock, kuujjuaq, laibach, landlock, laubach, laycock, leacock, leafstalk, leglock, leimbach, leinbach, lekach, leverock, lifelock, limbach, line block, linstock, lintstock, lisptalk, listproc, livelock, livestock, lohoch, lohock, lovelock, luwack, m-lok, macaque, madlock, makeblock, mansbach, marbach, maroc, marschalk, marsh hawk, massbauch, matchlock, matlock, maybach, maycock, meacock, medoc, merauke, meshach, mindwalk, miwok, modok, mohawk, montauk, moonrock, moonwalk, mudrock, muehlebach, netrock, newshawk, niblock, night-hawk, nighthawk, nisroch, no-knock, norwalk, nurock, o'clock, oarlock, obrok, oclock, off-the-clock, orrach, outtalk, outwalk, padauk, padlock, paltalk, pandoc, pathak, peacock, peerblock, penock, penstock, petcock, pibroch, picklock, pinchcock, pitcock, plaintalk, playok, poptalk, pop rock, portlock, post-rock, postdoc, post hoc, protalk, psylocke, punk rock, putlock, qstock, racewalk, raroc, rayrock, rebstock, rendrock, restock, roadblock, rombach, roostcock, rootstalk, rootstock, ropewalk, round-the-clock, rowlock, sa-roc, sales talk, salzach, sandbach, sandrock, sash lock, sasl-yacc, scalp lock, schupbach, schwalbach, schwebach, seacock, seahawk, sealock, seebach, seedstock, seed stock, seelbach, self-talk, shacklock, shamrock, shedlock, sheepwalk, sheetrock, shellshock, shell shock, sherlock, sheshach, shiprock, shobach, shop talk, shylock, sidelock, sidewalk, sillcock, skirlcock, skyhawk, skywalk, slapshock, sleepwalk, slickrock, slutwalk, smalltalk, small talk, smock-frock, snatch block, soap-rock, soaprock, sob rock, songkok, spacewalk, space walk, sparhawk, spatchcock, spinlock, spitchcock, spurlock, square block, starhawk, staubach, steinbach, steinbock, stonerock, stopclock, stopcock, stormcock, street-walk, streetwalk, subhlok, sunblock, sweat sock, sweet-talk, sweet talk, synroc, synth-rock, t-loc, taglock, tailblock, tailstock, take stock, talaq, tanakh, taroc, tatlock, thricecock, timeclock, time clock, tipstock, tool-stock, toontalk, top-block, torgoch, traprock, trap block, trash-talk, turncock, twistlock, umbach, unblock, uncock, undock, unfrock, unlock, unstock, uptalk, uraqt, vanoc, wall clock, wall rock, warlock, warloeck, war hawk, wedlock, weighlock, weinbach, weinstock, weisbach, wenlock, westrock, wheellock, wheelock, wheel lock, whipstalk, whipstock, whitelock, whitlock, wind sock, winlock, witbrock, wittstock, woodblock, woodlock, woodshock, woodstock, wood block, woolcock, woolstock, wristlock, xtalk, yeosock, yolk-stalk, young rock, zamrock

3 syllables:
afflerbach, aftershock, al-iraq, alarm clock, allensbach, amarok, angakok, angry walk, anti-lock, antiknock, antilock, antioch, antioche, appletalk, arawak, around-the-clock, auction block, avant-rock, babytalk, baby talk, beetlestock, bendlerblock, bienenstock, billycock, biorock, bioshock, birkenstock, bitcointalk, bitter dock, black hemlock, blues-rock, boocock, bretman rock, brevibloc, building block, bullock block, butcher-block, butcher block, cam-in-block, castlerock, caudal block, chickenhawk, chicken hawk, chicken stock, chock-a-block, chockablock, chopping block, cincalok, cinderblock, cinder block, cindytalk, cinemark, city block, common stock, control stock, cooper's hawk, counterstock, cuckoo clock, damper block, dandy-cock, devilock, double-lock, double-talk, doubletalk, double talk, dousing-chock, drawing chalk, dualshock, eagle-hawk, eaglehawk, echohawk, eisenach, empty talk, engine block, epiroc, eriach, escape cock, ethertalk, eurovoc, everbach, fairy-lock, falkenbach, fensterstock, fetterlock, feuerbach, fighting cock, floating dock, flower stalk, four o'clock, gapingstock, gazingstock, gengenbach, geoloc, gondioc, gwenhwyfach, hadiach, haigerloch, hammerlock, hassebrock, hemiblock, hollerbach, hollyhock, honestok, hover-hawk, hypertalk, idle talk, ijiraq, incabloc, interlock, intershock, intertalk, inukjuak, john hancock, jungle cock, katzenbach, kazachok, ken shamrock, khabarnaak, kilmarnock, kittyhawk, lady's smock, ladyclock, ladyhawke, laughing-stock, laughingstock, letter stock, lever lock, little-rock, little rock, living rock, localtalk, ma'alefa'ak, mackinac, malcolm stock, mandioc, maniaque, manioc, maniok, marsaxlokk, matt hancock, max whitlock, maya hawke, mental block, minirock, mlotok, mockingstock, molly-mawk, mollymawk, monobloc, monotroch, movie4k, muschelkalk, nanoblock, nawaiwaqt, newyacc, nordwestblock, office block, one ok rock, overclock, overlock, overstock, overtalk, overwalk, paddlecock, pandadoc, penny stock, peter falk, pigeon hawk, pillar-block, pillow block, plymouth rock, pointingstock, poppycock, prairie dock, preferred stock, pulley-block, push-to-talk, qaqortoq, quarter stock, rackarock, reichenbach, roborock, rolling stock, rosenbach, rosenstock, round the clock, rudderstock, safety lock, sarah chalke, sassenach, school of rock, shepherd's clock, shinnecock, shite-hawk, shittlecock, shutterstock, shuttlecock, skeeter hawk, sondra locke, sour dock, sparrowhawk, sparrow hawk, sponsorblock, stab-lok, starting block, sterling bloc, stumbling-block, suckanhock, superblock, supertalk, swagelok, system clock, table talk, teletalk, teremok, tomahawk, tower block, turkey-cock, turkey cock, turret clock, underlock, understock, unisoc, vanscyoc, vapor-lock, vapor lock, voting stock, waffenrock, waterbok, watered stock, water clock, weathercock, weizenbock, widow's walk, wikiloc, window lock, winkle-hawk, winterhawk, writer's block, yellow dock, zellerbach

4 syllables:
against the clock, allison stokke, ammonia clock, around the clock, asroc, asrock, athletic sock, atomic clock, authorized stock, azederach, basilicok, bel-merodach, bergisch-gladbach, boeing t-7 red hawk, bone tomahawk, capital stock, chaparral cock, christina haack, classified stock, cock-of-the-rock, cock of the rock, cylinder block, cylinder lock, douglas hemlock, eastern hemlock, electric clock, electric shock, electroshock, emery rock, floating dry dock, genesis rock, graham hancock, grandfather clock, hieromonach, igneous rock, ignition lock, insulin shock, jack-of-the-clock, kakaotalk, karun chandhok, lesser hemlock, maraviroc, marianne koch, marita koch, monchengladbach, mosquito hawk, mountain hemlock, munchen-gladbach, noah baumbach, nortonlifelock, nunsexmonkrock, obstructive shock, out-of-wedlock, out of wedlock, pendulum clock, plutonic rock, poison hemlock, reacquired stock, scribbling block, spotted hemlock, stumbling block, sweet four o'clock, treasury stock, unlisted stock, varsity sock, villeneuve-d'ascq, vincent hancock, virginian stock, virginia stock, volcanic rock, water hemlock, water shamrock, western hemlock, west coast hemlock, wild hollyhock

5 syllables:
12-hour clock, 12 'o' clock, 24-hour clock, anderson .paak, combination lock, concurrentsmalltalk, desert four o'clock, distributive shock, electrical shock, evil-merodach, kangiqsualujjuaq, lockheed f-117 nighthawk, mercedes-maybach, metamorphic rock, mountain four o'clock, mountain hollyhock, new kids on the block, pacific hemlock, podvorotnichok, porphyritic rock, trailing four o'clock, wahunsonacock

6 syllables:
biological clock, canadian hemlock, capital of iraq, carolina hemlock, curtiss p-40 warhawk, douglas a-4 skyhawk, johann sebastian bach, over the counter stock, record of ragnarok, saxe-weimar-eisenach, sedimentary rock, spotted water hemlock

7 syllables:
california four o'clock, colorado four o'clock, sikorsky sh-60 seahawk

8 syllables:
2003 invasion of iraq, sikorsky uh-60 black hawk