This is a regex that finds all words that start with either 'a' or 'A' in a string. It's a great way to find all words that are awesome or, you know, just plain 'A'.
Regex Pattern: /[aA]\w+/
Example Input: "Hello, World! Aardvark and Aroma are awesome animals."
Matches: Aardvark, Aroma
Learn more about finding all words that start with 'b' or 'B' in a string