1 syllable:
100cc, boock, brouk, bru-c, brueck, buque, c-to-c, chook, drouk, duke, duque, fluke, fouque, fuke, glueck, hoock, juke, kook, kueck, leuc-, leuck, leuk-, leuke, louque, luc, luche, luecke, luick, luke, luque, mmse uec, moock, muecke, nuke, nuque, php-nuke, puke, ruche, souk, souke, spook, spruik, spuke, steuck, stueck, stuke, sukhe, toque, tuk, tuque, wouk

2 syllables:
a.u.c, archduke, banzuke, baruch, batuque, bharuch, bill duke, blood fluke, caduc, caduke, capuc, chabouk, chabuk, chazuke, chibouk, datuk, deshmukh, douk-douk, dubuque, dziuk, einbruch, farouk, faruq, grand-duke, grand duke, hp-12c, intuc, jean-luc, karuk, leeteuk, malbrouck, masuk, mayduke, muktuk, netsuke, nutuk, padouk, perruque, peruke, produc, rebuke, saint-brieuc, sambuke, sansuke, sasuke, teeuck, unduke, winnuke

3 syllables:
0x10c, agantuk, antinuke, asazuke, baraduke, cambaluc, dr. luke, ecco2k, gorboduc, hazebrouck, jo jung-suk, kristin kreuk, kugluktuk, kulusuk, lachenbruch, lee jong-suk, liver fluke, mamaluke, mameluke, marinduque, marmaduke, nukazuke, parauque, sermersooq, stewie2k, tangsuyuk, winston duke, yoo jae-suk

4 syllables:
bashi-bazouk, bashibazouk, fukujinzuke, inuktituk, riteish deshmukh, vanbiesbrouck, vicente luque

5 syllables:
ilya ivanyuk, mediacityuk

6 syllables:
nervenzusammenbruch

7 syllables:
gospel according to luke

4 syllables:
aeronautic