2 syllables:
chouka, chuka, chukka, duca, hyouka, leuko-, luca, lucca, luka, mucca, mueca, pooka, pukka, shuka, sluka, stuka, sukha, sukka, zucca

3 syllables:
albuca, amduca, asuka, azuka, bazooka, belukha, caduca, carruca, delduca, deluca, delucca, dhandhuka, echuca, eruca, farruca, festuca, fistuca, haruka, huachuca, isuca, jabuka, jamukha, juluka, kautuka, lactuca, laduca, levuka, machuca, malukah, manduca, marchewka, maruca, mayuka, mazzuca, molucca, nalewka, nauka, otsuka, pachuca, paducah, paduka, palooka, peluca, rabuka, renuka, rostuca, sambuca, shakshouka, shambuka, shinyuka, shizuka, taluka, tijuca, toluca, verruca

4 syllables:
amel tuka, banyaluca, colaluca, gianluca, hiratsuka, langkasuka, melaleuca, mimizuka, noctiluca, onitsuka, pagliuca, pokazukha, popoluca, pukapuka, yokosuka

5 syllables:
atuatuca, mutabaruka

7 syllables:
great teacher onizuka

2 syllables:
luba, buddha, ruta, pupa, scuba, tuba, gouda, cuba

3 syllables:
succuba, bermuda, upupa, likuta, aruba, cicuta, yoruba, beluga, remuda, ajuga, barbuda, garuda

4 syllables:
barracuda, alouatta, chattanooga