If I look up “carrot” in the dictionary, most people will acknowledge I do not know all there is to know about carrots and if I truly want to understand carrots, I should probably pick up a horticultural text book. We know that legal and medical terms are going to be, at best, simplistically represented and know we need to find a lawyer or a doctor if we want to know more. Anyone deciding to base their argument on, say, a philosophical concept or term using the dictionary is going to be laughed at at best, or automatically lose whatever argument they’re trying to make at least.
Yet the minute we move into a social justice framework, the ultimate authority changes. We don’t need lived experience, we don’t need experts who have examined centuries of social disparities and discrimination, we don’t need societal context. We don’t need sociology or history – no, we have THE DICTIONARY! That ultimate tome of oracular insight, the last word on any debate!
It’s patently ridiculous and you can see that by applying it to any other field of knowledge. But the privileged will continually trot out simplistic, twitter-style dictionary definitions as if they are the last word and the ultimate authority. No-one would drag out the dictionary to debate science with a scientist. But they’re more than willing to trot out a dictionary definition of racism over any sociological analysis. A dictionary is not the ultimate authority - they’re a rough guide for you to discover the simple meaning of words you’ve never heard before – not an ultimate definition of what the word means and all its contexts.