1 syllable:
.tech, baeck, baek, bec, blech, bleck, brech, breck, brekke, cech, ce ec, check, chek, cheque, cleck, creque, czech, dec, dech, deck, deque, drecche, dreck, dweck, eck, ek, etech, fc ec, fecche, feck, fleck, frech, freck, geck, grech, grecque, heck, hecke, hrbek, hw lec, jech, keck, kleck, kneck, krech, kretek, lech, leck, lecke, lek, mech, meck, mecque, mpe fec, nec, neck, pech, peck, ptech, quek, rec, recche, rech, reck, rspec, scheck, schleck, schmeck, schneck, schnecke, schreck, sec, seche, seck, secque, seque, setec, sheck, shek, shreck, shrek, sneck, spec, spech, speck, stec, stech, steck, strech, streck, strecke, svec, szczech, tec, tech, teck, tek, tekke, theque, treck, trek, v-neck, weck, wfq ec, wnek, wrecche, wreck, yecch, yeck, yekke, zech, zeck, zecke, zweck

2 syllables:
adtec, adtech, agetec, aircheck, airmech, aleck, alt-tech, altec, amdec, amtec, amtech, antec, apec, aptech, ardec, armtec, armtek, artek, aspec, astec, atek, autech, aztec, back-check, backblech, backcheck, bad check, banctec, bank check, bartek, bedeck, bed check, beef neck, bell deck, berec, bestek, big tech, birkbeck, bishkek, bistec, blank check, blendtec, bluetec, bo-shek, boat deck, bobeck, bocek, boltneck, bombeck, botec, bovec, breakneck, bridge deck, brintec, brobeck, brodbeck, brubeck, bruneck, btech, bullneck, bull neck, burghbrech, caltech, cetec, chameck, chaneque, chemtrec, cimec, clauneck, cleantech, codec, coincheck, coltec, comptek, comspec, comtec, comtech, coorstek, coretech, crew-neck, crewneck, crew neck, cromlech, crookneck, cross-check, crosscheck, cryptrec, crytek, deer-neck, dehecq, deltec, dembeck, destec, detec, dilbeck, ditech, dombeck, domecq, dubcek, edhec, edtech, emtec, endec, entec, erech, espec, essec, estec, ewe-neck, exec, eyetech, fanech, femtech, fintech, fishbeck, flight deck, flyspeck, fore-check, foredeck, fourth deck, francek, gacek, gatech, gladbeck, gleevec, goertek, goldbeck, gtech, gun deck, hacek, half-deck, harbeck, hatcheck, health check, hen-peck, henpeck, heuschrecke, hi-tech, hi-tek, high-tech, hightech, hitec, hitech, hornbeck, howtek, huastec, huvec, imtech, indec, inspec, intec, intech, in check, isrec, itech, itek, itsec, jacek, kel-tec, kexec, kohlbeck, konec, kotek, labrecque, labtec, lamech, lectec, limbeck, lithtech, lo-tech, longneck, lovech, low-tech, lubeck, luebeck, lundbeck, lybeck, macek, magec, main deck, manbeck, martech, martek, mastec, maybeck, mcpeck, melech, memtec, mestek, mil-spec, milspec, minntech, mitek, mivec, mixtec, mnase-seq, moftec, molech, mrotek, mtech, nadec, namecheck, navteq, nectec, newtek, nobec, nortec, nortek, notec, novec, oobleck, opec, optek, oreck, ossec, pantech, parsec, pathspec, paycheck, pentech, petek, philbeck, photek, pinchbeck, pipetec, placek, plambeck, playtech, plocek, poke-check, poke check, poop deck, portec, postech, presstek, prestech, protec, prypec, ptacek, quakec, quebec, questech, quickcheck, raincheck, rain check, raisbeck, ramtek, raytech, realtek, rebec, recheck, rechteck, redneck, refseq, repec, rexec, rhinebeck, ring-neck, ringneck, rna-seq, robeck, rollneck, roughneck, rubeck, sam quek, satec, scatec, schoenbeck, scitech, scoop-neck, seebeck, semtech, showtek, sidek, siltec, simtek, sir-tech, sobeck, softech, sovtek, spartech, spell-check, spellcheck, spot-check, srimech, stantec, steam deck, steenbeck, steinbeck, strombeck, sudbeck, sun deck, syntec, syntech, tanrec, tape deck, teaneck, tenrec, third deck, thortec, toltec, transec, trellech, trolltech, tschakmeck, tucek, uncheck, utech, uttech, vacek, valtek, vanek, vanhecke, vanvleck, varech, ventech, vo-tech, vojtech, vortec, vtech, vulfpeck, wabtec, wavetek, wedtech, weitek, welltech, westtech, whinsec, whitbeck, winhec, witbeck, woodbeck, woodpeck, wordtech, world-check, wozzeck, wryneck, zacek, zadek, zaitech, zebec, zentec, zyrtec

3 syllables:
abcotek, adaptec, aerotech, afotec, afterdeck, aggrotech, ametek, anandtech, anitec, apobec, apotek, aquidneck, aristech, asetek, asiatech, astrotech, atac-seq, averbeck, awning deck, banacek, banker's check, battletech, bio-tech, biontech, biotech, body-check, bodycheck, bottle-neck, bottleneck, cargotec, cargo deck, cashier's check, cassette deck, ceatec, chiang kai-shek, cognitech, convatec, countercheck, cppcheck, cthulhutech, cytotec, cytotech, dailytech, desertec, digitech, digitek, dillenbeck, discotheque, double-check, doublecheck, dynatech, ecotec, eotech, epitech, equitec, eurocheck, eurocheque, evotec, extremetech, fiddleneck, filespec, filtertek, fk jablonec, forecheck, fujitec, funcinpec, gendrisek, genentech, geotek, ghettotech, golombek, gonothec, hallenbeck, halterneck, hemotec, hilsabeck, hit the deck, hollenbeck, holodeck, hunt-and-peck, hybritech, icohtec, immunetech, indotec, infotech, intertech, intertek, intratec, inventec, investec, isoetec, kaisertech, kennebec, kermadec, killingbeck, kominek, kompanek, konicek, kumrovec, landing deck, leatherneck, liberec, limberneck, littleneck, logitech, lower deck, magnetek, mazatec, meditech, memotec, merovech, microtek, miratec, muscletech, nano-tech, nanotech, nescopeck, nyentek, oapec, overbeck, overcheck, overpeck, panzerschreck, payroll check, peremech, piapec, polartec, polo-neck, polytech, positec, publitech, quarterdeck, receptech, reznicek, richard speck, robotech, rosenbeck, rubberneck, sabertech, sabortech, sabretech, second deck, sematech, seq2seq, shadow.tech, shelter deck, sinopec, solitec, storagetek, symantec, tabachneck, telecheck, terratech, ticketek, tlaxcaltec, triotech, triple sec, turtleneck, unitec, unitek, upper deck, vaccitech, vanderbeck, vasotec, viratek, vocaltec, weather deck, westerbeck, yucatec, zapotec

4 syllables:
a4tech, abimelech, achimelech, adrammelech, ahimelech, ameritech, amy yasbeck, anammelech, attendance check, attoparsec, autoexec, bibliotheque, certified check, chapultepec, cinematheque, discovered check, elimelech, hurricane deck, kiloparsec, libavcodec, medicare check, megaparsec, pain in the neck, parity check, personal check, pinakothek, promenade deck, redundant check, regem-melech, tehuantepec, toulouse-lautrec, traveler's check, treasurer's check, uisnech, word2vec

5 syllables:
pontiac aztek, retirement check, timeline of star trek

6 syllables:
disability check, rider-waite tarot deck, sinovac biotech, standard 52-card deck

7 syllables:
henri de toulouse-lautrec