"Random passwords" refers to a series of letters, numbers, and special characters that are generated in a way that makes them difficult for others to guess or hack. Full definition
A simple tool for generating random passwords using either random symbols or random words. (den4b.com)
If you're creating a new account, your password manager will offer to generate a secure random password for you, so you don't have to think about that, either. (howtogeek.com)
Their website also offers a web tool, where you can select various option or set conditions to create random passwords. (thewindowsclub.com)