Personally.... now notice I say PERSONALLY
For me a brandable is a UNIQUE brandable name that UNIQUELY identifies a particular company or brand name.
So if you take an ordinary word and slightly modify it into a unique BRANDABLE new word. Something you can register as a trademark without infringing on someone else.
In Canada this was just done by a big bank under the Simplii Financial name or simplii.com.
I considered this a classic brandable with the company having full control because it is a made up word.
Now if someone else uses Simplii Loans they get shut down. Technically even a Simplii Restaurant could not use it because it is a made up trademarked word.
Apple will alway have to fight because they only hold the mark in the technology field. Apple was banned from going into music with the name Because apple was owned by the Beatles.
It would have been better to change the word slightly and there would have been no limitations. Instead Apple has paid a lot of money to be able to use Apple with iTunes etc.
Disclaimer: Please note the above is simplii (pardon the pun) my opinion on brandables.
Blatant Plug for my domain: www.Priide.com - I consider this my best BRANDABLE - and a great example of owning a name where if trademarked it would be hard for anyone to use anywhere else.