Only one letter of the English alphabet has more than one syllable, and it has three.
If you were wondering, it got named “double u” when u and v were the same letter, V was used at the beginning of words and u ain the middle/end. It wasn’t till much later they were seperated into 2 glyphs for different sounds.
In German it’s called a Doppel-Vau, with Vau being the letter V.
In Dutch it’s just called wee, none of this double bullshit