That was already helpful, gonger. A certain level of ambiguity as universal attribute of all language elements... less like Boolean logic (true or false), but rather like fuzzy logic (more or less fitting). Now I wonder if there is a "technical term" in linguistics for words with a rather high level of ambiguity. Something like "inherently vague".
Specifically regarding "freedom", there are a lot of fixed terms as complex phrases to make the context clearer. Many will have heard about the "freedom of speech" (although possibly often not understood its consequences, as it does not include a license to kill those who don't agree with your opinion). Being born in the GDR, we often talked about a "freedom of travel" (though not to be confused with "freedom of movement", or "labor mobility", as this was more related to vacation trips). The common concept seems to be any kind of "freedom from oppression"; a difference between several types of freedom will be how much granting a freedom to some will take some freedom from others (e.g. supporting a strong economy by removing state control does not guarantee increase in public wealth: there is no "trickle down effect" as much as promised).