Even the most liberal descriptivist would accept that there must be some conventions of usage. We must agree to spell cat c-a-t and not e-l-e-p-h-a-n-t, and we must agree that by that word we mean a small furry quadruped that goes meow and sits comfortably on one’s lap and not a large lumbering beast that grows tusks and is exceedingly difficult to housebreak.
