Definition: Passwords are encrypted codes that secure information stored on a website or in an online application, often used to authenticate users. Specifically: "Password.php" refers to a PHP file, which is a programming language developed by the Free Software Foundation for web development. The word has two meanings: 1. The File/Document containing a password. This can be a form on a website or a link in an online application. 2. A method of securing information with code and data stored in a database. Defining "password.php" means it's the file that holds the password and settings used by websites to secure their users' login details, often used for authentication purposes.