A short code is a small set of numbers that you can use to send and receive messages on your phone. It's like a special phone number that you can use to talk to a specific person or company.
For example, if you want to enter a contest or get updates from your favorite store, you can text a short code to a specific number. The short code will then send you automatic messages or even allow you to interact with the company or service using your phone.
Think of it like a secret code that you and the company or service can use to communicate with each other without having to dial a long phone number. It's an easy and convenient way to stay connected and get information quickly.