Hearing that word today motivated me to post. Fair. Here, in the world according to Crowden, are the ONLY two definitions of fair:
1: Used an an adjective, as in "she has fair skin". Opposite of dark complexion.
2: A place you go to in order to get sick on cotton candy and vomit-inducing roller coaster rides.
And ... that's it. There is absolutely, positively, no other definition of the word that makes any sense in the world as it is. So if you catch someone using the word inappropriately, perhaps saying "That's just not fair." inform them that that's simply not a word, pure and simply. Not a word and not a concept.