I thin to define opposites, you have to define something. I don't think that there are absolutes. Within semantics, lets say you have a lamp post. Well, there are thousands of different types, all various sizes, colors etc. So, the opposite of whatever that group of identities are - and they could be a drawing of a lamp post or a picture or the word could be an infinite amount of possibilities of that things antithises.I guess what I'm saying is that you have no opposites without first identifyine the signifier. This is impossible. What is a breathe? Who is breathing? Whos self are we talking about?