Well kiddo, a hotline is a special phone number that you can call to get help or information. The people who answer the phone are there to listen and help you with whatever problem you have. Hotlines can be used for all sorts of things, like if you need someone to talk to because you're feeling sad or scared. They can also be used if you have a problem with someone being mean to you or if you see something that seems unsafe. Basically, a hotline is like having a superhero on the other end of the phone who is always ready to help you out!