1 syllable:
.tech, baeck, baek, bec, beck, blech, bleck, brech, breck, brekke, cech, ce ec, check, chek, cheque, cleck, creque, czech, dec, dech, 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, berec, bestek, big tech, birkbeck, bishkek, bistec, blank check, blendtec, bluetec, bo-shek, bobeck, bocek, boltneck, bombeck, botec, bovec, breakneck, 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, flyspeck, fore-check, foredeck, francek, gacek, gatech, gladbeck, gleevec, goertek, goldbeck, gtech, 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, jeff beck, kel-tec, kexec, kohlbeck, konec, kotek, labrecque, labtec, lamech, lectec, limbeck, lithtech, lo-tech, longneck, lovech, low-tech, lubeck, luebeck, lundbeck, lybeck, macek, magec, 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, 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, scott beck, seebeck, semtech, showtek, sidek, siltec, simtek, sir-tech, sobeck, softech, sovtek, spartech, spell-check, spellcheck, spot-check, srimech, stantec, steenbeck, steinbeck, strombeck, sudbeck, syntec, syntech, tanrec, teaneck, tenrec, 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, banacek, banker's check, battletech, bio-tech, biontech, biotech, body-check, bodycheck, bottle-neck, bottleneck, cargotec, cashier's check, ceatec, chiang kai-shek, christophe beck, 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, hollenbeck, holodeck, hunt-and-peck, hybritech, icohtec, immunetech, indotec, infotech, intertech, intertek, intratec, inventec, investec, isoetec, kaisertech, kennebec, kermadec, killingbeck, kominek, kompanek, konicek, kumrovec, leatherneck, liberec, limberneck, littleneck, logitech, 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, sematech, seq2seq, shadow.tech, sinopec, solitec, storagetek, symantec, tabachneck, telecheck, terratech, ticketek, tlaxcaltec, triotech, triple sec, turtleneck, unitec, unitek, vaccitech, vanderbeck, vasotec, viratek, vocaltec, 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, kiloparsec, libavcodec, medicare check, megaparsec, pain in the neck, parity check, personal check, pinakothek, 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, sinovac biotech

7 syllables:
henri de toulouse-lautrec