Words that rhyme with istanbul and also have One Syllable
boole, boule, bruehl, brule, buehl, buel, buhl, cool, coole, cruel, drool, dual, duell, dule, fool, fuel, hoole, joule, juel, jule, kool, kreul, luelle, muehl, mule, pool, poole, poul, reul, reule, rhule, ruel, rule, school, schuele, spool, sproule, sproull, spruell, spruiell, spruill, stool, thule, tool, toole, tuel, tuell, tuyle, who'll, you'll, yuill, yuille, yule