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Yes, but words are defined by usage, not the other way around. http://www.etymonline.com/index.php?term=liberty

True but in NLP there is a concept called deep process. Sometimes what we say reveals what is going on unconsciously. And how we are deceived or are deceiving others. Often words have a second meaning that those in power use.

Well, we can only speak to our own definitions, and for me, liberty means, having a captain, or not having a captain, at my volition.