When we talk about ‘confine’, think of a playpen for a baby. The playpen is like a small area where the baby can play safely. The walls of the playpen are the ‘confines’ because they keep the baby inside and stop them from crawling away. The baby can have fun and play with toys inside, but they can’t go out until someone opens the gate.
Another way to understand ‘confine’ is to imagine a fish tank. The water and fish are kept inside because of the glass walls. The fish can swim around and have fun, but they can’t swim out of the tank. The tank confines the water and fish, keeping them in a safe space.
Think about a sandbox in the playground. The sand stays in one place because of the wooden edges around it. The edges confine the sand so it doesn’t spread all over the playground. Kids can build sandcastles and dig holes, but the sand stays inside the sandbox.
In all these examples, ‘confine’ means keeping something inside a certain space, so it doesn’t go outside the limits.