Attitudes toward changes in a language range between two poles. The prescriptivist says words have fixed definitions, and using them in ways that aren’t in the dictionary is misuse. The descriptivist says that words mean whatever people choose them to mean. Few people take a pure position at one end or the other. Prescriptivists face the fact that dictionaries change. Descriptivists can’t treat every neologism they hear as part of the language if they expect people to understand each other. The debate is over how much legitimacy a word needs before it’s considered standard. Words pass through the stage of slang or jargon before they reach full citizenship. Some words don’t go beyond that status, and they don’t have to. Professions need their jargon and subcultures need their slang, and they don’t have to impose it on the whole linguistic community.

Linguistic change isn’t something that a mysterious Sprachgeist causes. It’s the product of the users’ choices. Prescriptivists exert a drag on changes, and that can be good. If the language changes too fast, it becomes less precise. No one’s sure whether a word means what it always meant or it’s become something else. New words are necessary to convey new concepts, but they should prove their worth before getting wide adoption. Some words, like “nice,” have changed so many times that no one’s sure what they mean, except by context and tone of voice.
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