* Words ending in -ious: The "ious" part often sounds like two syllables, with a slight pause between the "i" and "ous" where you could *arguably* hear the "you" sound at the end of the first perceived syllable (though linguistically, it's one syllable). Examples include *serious, glorious, curious*.
It's important to note that this is subjective and depends on how one breaks down the syllables. There aren't true examples of words where "you" definitively forms a complete final syllable in standard English pronunciation.