I think that LSV would have said that the phenomena Andy has been talking about are examples of sense. I want to point out again that LSV, like Saussure, is drawing a distinction between speech and language (I always forget the French: is it parole and langue?) But whereas Saussure drew a structuralist bifurcation between the two, system and utterance, LSV insists both that they are distinct and that they are related. Not only does the system establish the conditions for utterances (which Saussure recognized), so too, ultimately (that's to say, towards the end of chapter 7), sense feeds back into meaning - utterances transform the system. To my (limited) knowledge, Saussure was not interested in this, or didn't allow that it could happen. In this regard LSV anticipates Derrida and others.
Martin