Pinyin "jiu" / "you" final pronunciation difference In Mandarin should there be any difference between the pronunciation of the pinyin final in "jiu" and the pronunciation of the pinyin whole word "you"?
The pinyin Final "iu" contains a hidden "o", so it is pronounced "iou".

"y" is actually an "i" Final being used as an Initial.

So the answer is: if both are the same tones, no :)

Same tones as in: 就 (jiù) and 又 (yòu)