Ughh sorry for the multiple posts about this. Seems people don't like dao because it is more of a Chinese term and it is easily mixed up with the other dao that is seen a lot on wuxiaworld due to all the cultivation type novels.

I did consider other translations like saber, but I didn't want to use them because they seem more limiting on the type of weapon, while 도 encompasses many types. In the end, the 도 is literally a single-edged sword so that's what I'll be using from now on.

So dao = single-edged sword. I'll probably use all names for items as Single-edge Sword and interchange between single-edged sword and sword during combat, because constantly using single-edged sword can be too wordy.