For what it worth, Dutch has "ij", which could be a letter, or diphthong, or two unrelated letters (in words borrowed from French, for example), and could also be written as "ij", or as "ÿ", or even "y".
There is no dedicated key on computer keyboard for it, but you are supposed to remember it's a unit when capitalizing, for example IJmuiden.
There is no dedicated key on computer keyboard for it, but you are supposed to remember it's a unit when capitalizing, for example IJmuiden.
https://en.wikipedia.org/wiki/IJ_(digraph)