It all depends on what you mean by "free". Are you asking if you can have two words that mean the same thing to a dog? If that is so then yes you can. My dogs know their behaviors in German, Englsh and in signals.
As far as what the free word means you can determine that. While I use yes to mark during training and it does mean the behavior has ended, it does not mean "free" in my training venacular. If we are still training, I still expect engagement after the marker. When all training is done, then one is free. It is not a happy word for my dogs who like training!
If a word is my marker, I use it for marking only and it is consistently followed with reward. If yes is a word that people use frequently in other ways in training, we encourage them to choose a more unique word as a marker.
Last edited by Samba; 06-05-2011 at 07:34 PM.