In Wikipedia, the letter
Ng is listed as one of the 28 letters of the Filipino alphabet. However, when I click on the link to go to
Ng's page, I get to a list of digraphs. I'm not a linguist, but as far as I know a digraph is a sequence of two letters whose pronunciation is different from the 'regular' sound of the sequence of the two, e.g
sh in English or
sch in German.
So what is the difference between
Ng as a letter or a digraph in this regard? I'm trying to find
Ng's Unicode number, but to no avail. Aren't letters (as opposed to, perhaps, digraphs) expected to have a Unicode number? Especially letters from languages as widely spoken as Filipino/Tagalog.