Microsoft Java.

C-tic tac toe

C octothorpe

Wait it’s not C-Octothorpe?

D♭

C++/++

C-pound

cocktothorpe

See-octothorpe. Why, how do you say it?

Cis. Also Des programming language would be its enharmonic equivalent.

Pfft….C-Pound, duh

C number

c-hash?

Here we call it C jogo da velha

ja mówię ce kratka

It is often called C Hashtag but it is actually C .Net/(slash) Hashtag

C-noughts-and-crosses-board

Or as my mother would call it, after only hearing me mention it a few times: "Sea Shark"

Sometimes I call it c sharp but I prefer c hashtag