Private ownership means that someone owns something and has the right to control it, use it, sell it or give it away. For example, imagine you have a toy. You own it, so you get to decide how to play with it, if you want to share it with your friends, or if you want to keep it safe in your room all for yourself.
The same goes for other things, like a house, a car, or even land. If you own a house, you can choose how to decorate it, how to organize it, and who can come into it. Similarly, if you own a car, you can choose where to drive it, who can ride in it, and how to take care of it. If you own land, you can choose what to do with it, such as using it for farming, building a house or selling it for business purposes.
Ownership gives you rights over something, but it also comes with responsibilities. When you own something, you need to take care of it and make sure that it is not harming anyone else or the environment. For example, if you own a dog, you need to feed it, walk it, and make sure it doesn't make a mess in public areas.
Overall, private ownership is about having the freedom to make choices about your own things, while also taking responsibility for them.