A A A A L T and a blank

I just picked up a book called The Complete Blank Book. It is a humongous book which lists all the letters you can get - 6 of them, with a blank, and the bingos (or Scrabble O's, which I prefer to call them) that you can spell with those letters.

So, what Scrabble-Os can you spell with a blank, 4 As, an L and a T?

Easy.

ATALAYA (the blank being a Y).

And what does it mean?

Well, according to Dictionary.com it doens't mean anything.

In Spanish, it means "watchtower." (Alta being high, and laya presumably meaning watch.)