Certainly ordinary language has no claim to be the last word, if there is such a thing.

Sentences are not as such either true or false.

Going back into the history of a word, very often into Latin, we come back pretty commonly to pictures or models of how things happen or are done.

After all we speak of people 'taking refuge' in vagueness -the more precise you are, in general the more likely you are to be wrong, whereas you stand a good chance of not being wrong if you make it vague enough.

You are more than entitled not to know what the word 'performative' means. It is a new word and an ugly word, and perhaps it doesnot mean anything very much. But at any rate there is one thing in its favor, it is not a profound word.

"What is truth?" said jesting Pilate, and would not stay for an answer. Pilate was in advance of his time. For "truth" itself is an abstract noun, a camel, that is, of a logical construction, which cannot get past the eye even of a grammarian. We approach it cap and categories in hand: we ask ourselves whether Truth is a substance (the Truth, the Body of Knowledge), or a quality (something like the colour red, inhering in truths), or a relation ("correspondence"). But philosophers should take something more nearly their own size to strain at. What needs discussing rather is the use, or certain uses, of the word "true." In vino, possibly, "veritas," but in a sober symposium "verum."

Usually it is uses of words, not words in themselves, that are properly called vague.