Maybe there's a big ol' red button that I'm missing, but I can't figure out how to add words to the dictionary. I've looked in the backoffice of my blog, the online manual, and the forum and I can't find anything.
There's a name that will be appearing in a lot of posts that I'll be making. I'd like to add this name to the dictionary so I don't get that wavy red line every single time it appears.
You are talking about browser dictionary, it has nothing to do with b2evolution ;)
Right click on the word and select "Add to dictionary" or something like this.