1 syllable:
bach, balk, baulk, bloc, block, blok, bock, bok, broch, brock, calk, caulk, chalk, chock, clock, cock, croc, crock, doc, dock, falk, floc, flock, frock, gawk, haak, hawk, hoc, hock, jacques, jock, knock, loch, lock, locke, lok, mach, mock, nock, och, pock, roc, rock, salk, sauk, schlock, shlock, shock, smock, sock, spock, squawk, stalk, stock, talk, thwack, walk, wok

2 syllables:
ad hoc, airlock, air lock, air sock, backtalk, bad block, ballcock, ball cock, ball hawk, bangkok, bawcock, beanstalk, bedrock, beef stock, bitstock, blackcock, blackhawk, black cock, bloodstock, boardwalk, breechblock, cakewalk, catwalk, cellblock, chalk talk, coldcock, cornstalk, crosstalk, crosswalk, crushed rock, deadlock, defrock, diestock, dry dock, elflock, en bloc, eyestalk, feedstock, fetlock, fish hawk, flintlock, foreshock, french chalk, gamecock, goshawk, graywacke, gridlock, gritrock, growth stock, gunlock, gunstock, half-cock, hancock, havelock, haycock, headlock, headstock, heart block, hemlock, hen hawk, hitchcock, hot stock, iraq, jaywalk, john locke, leafstalk, line block, linstock, livestock, lovelock, macaque, maroc, marsh hawk, matchlock, medoc, miwok, mohawk, moonwalk, nighthawk, o'clock, oarlock, oclock, padauk, padlock, peacock, penstock, petcock, pibroch, picklock, postdoc, post hoc, punk rock, restock, roadblock, rootstalk, rootstock, ropewalk, round-the-clock, rowlock, sales talk, sash lock, scalp lock, seacock, seed stock, shamrock, sheepwalk, sheetrock, shell shock, sherlock, shop talk, shylock, sidewalk, skywalk, sleepwalk, small talk, snatch block, soaprock, space walk, spatchcock, square block, stopcock, streetwalk, sunblock, sweat sock, sweet-talk, sweet talk, tailstock, take stock, tanakh, time clock, trap block, turncock, unblock, undock, unfrock, unlock, wall clock, wall rock, warlock, war hawk, wedlock, wheel lock, wind sock, woodcock, woodstock, wood block

3 syllables:
aftershock, al-iraq, alarm clock, angry walk, antiknock, antioch, arawak, around-the-clock, auction block, baby talk, bitter dock, black hemlock, building block, bullock block, butcher block, caudal block, chicken hawk, chicken stock, chock-a-block, chockablock, chopping block, cinder block, city block, common stock, control stock, cooper's hawk, cuckoo clock, damper block, double talk, drawing chalk, empty talk, engine block, escape cock, fighting cock, floating dock, flower stalk, four o'clock, hammerlock, hollyhock, idle talk, interlock, john hancock, jungle cock, lady's smock, laughingstock, letter stock, lever lock, little rock, living rock, malcolm stock, mandioc, manioc, mental block, office block, overstock, penny stock, pigeon hawk, pillow block, plymouth rock, poppycock, prairie dock, preferred stock, pulley-block, quarter stock, rolling stock, round the clock, rudderstock, safety lock, sassenach, scotch woodcock, shepherd's clock, skeeter hawk, sour dock, sparrow hawk, starting block, sterling bloc, system clock, table talk, tomahawk, tower block, turkey cock, turret clock, understock, vapor lock, voting stock, watered stock, water clock, weathercock, widow's walk, window lock, writer's block, yellow dock

4 syllables:
against the clock, ammonia clock, around the clock, athletic sock, atomic clock, authorized stock, azederach, bel-merodach, capital stock, chaparral cock, classified stock, cock of the rock, cylinder block, cylinder lock, douglas hemlock, eastern hemlock, electric clock, electric shock, electroshock, emery rock, floating dry dock, grandfather clock, igneous rock, ignition lock, insulin shock, lesser hemlock, mosquito hawk, mountain hemlock, obstructive shock, 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, virginian stock, virginia stock, volcanic rock, water hemlock, water shamrock, western hemlock, west coast hemlock, wild hollyhock

5 syllables:
combination lock, desert four o'clock, distributive shock, electrical shock, eurasian woodcock, metamorphic rock, mountain four o'clock, mountain hollyhock, pacific hemlock, porphyritic rock, trailing four o'clock, wahunsonacock

6 syllables:
american woodcock, biological clock, canadian hemlock, capital of iraq, carolina hemlock, johann sebastian bach, over the counter stock, sedimentary rock, spotted water hemlock

7 syllables:
california four o'clock, colorado four o'clock