Apple’s macOS includes a private keyboard database, ~/Library/Keyboard/VulgarWordUsage.db, which tracks users’ profanity per app and recipient to refine autocorrect’s handling of swear words. This system uses a hidden word list flagged by tiers—vulgar, offensive, and sensitive—and categorized by topics such as sex, drugs, religion, and politics, drawn from Apple’s private Lexicon framework dictionaries; notably, “Trump” is uniquely flagged in the sensitive political category. While the database is often empty or absent due to folder issues, words with certain flags influence whether autocorrect replaces or suggests them, but flagged words are never outright censored from typing.
