So, all Webster's, Cambridge and American Heritage dictionaries are all of them wrong? If so, who decides what words mean? Twitter? https://ahdictionary.com/

So, all Webster's, Cambridge and American Heritage dictionaries are all of them wrong? If so, who decides what words mean? Twitter? https://ahdictionary.com/word/search.html?q=conservatism https://ahdictionary.com/word/search.html?q=conservatism https://dictionary.cambridge.org/dictionary/english/conservatism https://dictionary.cambridge.org/dictionary/english/conserva... https://www.merriam-webster.com/dictionary/conservatism https://www.merriam-webster.com/dictionary/conservatism