How do you underscore letter in password?

To underscore a letter in a passWord, you typically use the underscore character "_" to replace the letter you want to underscore. For example, if you want to underscore the letter "a" in the passWord "passWord," you would write it as "p_assWord." Note that underscores are commonly used in passWords to enhance security, but they are not visually similar to underlining in text formatting.