Build, test, and debug regular expressions
Matches whole words that do not begin with a vowel: the first character can be anything except a space or a/e/i/o/u (either case), so it typically captures consonant-initial words (though digits or symbols also qualify), followed by zero or more letters. Useful for filtering or extracting consonant-starting words in text analysis, word games, or vocabulary processing. The global and multiline flags ensure all matches are found across every line.