Just a short thought which I will be developing further for my dissertation on "A Christian Philosophy of Forms and Imitation." :
Words should be understood as signifiers of objective concepts. The meaning of words may change in usage over time but concepts are eternal. For instance the word "tolerance" has changed from being agreeing to disagree about issues without threatening harm or coercing the other to agree. Tolerance now seems to denote the idea of affirmation and acceptance of other people's views as being as good and true as your own. Despite this evolution in the usage of the word "tolerance" the concept underlying its earlier meaning remains unscathed. Imagine that the word tolerance is but a mere wrapper around the concept by which one can quickly identify the concept. Now that wrapper has been removed from one concept and re-wrapped around a different one. The original concept (Idea) still exists as it always has (and always will) but now must be adorned by either a new word or the old word with many words of explanation as to how one is using the word in its classical sense. So when people argue that words/language are mere social constructions and are completely subjective they are only half correct. They are correct that words change over time in their meaning, and that by popular use and application. But this is not to say that concepts are arbitrary or social constructions. In fact they are quite the opposite because one cannot change a concept no matter what they may try to do to it. At best they may simply try to get people not to talk about the concept or they may strip the word-wrapping that has historically been associated with that concept and place it on a different objectively existing idea, but they cannot abolish an Idea itself. It persists because it is eternal, immutable, and in the mind of God from eternity.
