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, 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, 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, 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, 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, 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, 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, woodcock, 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, chock-a-block, chockablock, chopping block, cincalok, cinderblock, cinder block, cindytalk, cinemark, city block, 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, lever lock, little-rock, little rock, living rock, localtalk, ma'alefa'ak, mackinac, 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, peter falk, pigeon hawk, pillar-block, pillow block, plymouth rock, pointingstock, poppycock, prairie dock, pulley-block, push-to-talk, qaqortoq, rackarock, reichenbach, roborock, rosenbach, rosenstock, round the clock, rudderstock, safety lock, sarah chalke, sassenach, school of rock, scotch woodcock, 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, waffenrock, waterbok, 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, azederach, basilicok, bel-merodach, bergisch-gladbach, boeing t-7 red hawk, bone tomahawk, chaparral cock, christina haack, 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, scribbling block, spotted hemlock, stumbling block, sweet four o'clock, varsity sock, villeneuve-d'ascq, vincent hancock, 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, eurasian woodcock, 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:
american woodcock, biological clock, canadian hemlock, capital of iraq, carolina hemlock, curtiss p-40 warhawk, douglas a-4 skyhawk, johann sebastian bach, 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