A displaced person is someone who has been forced to leave their home because it's not safe and they can't go back. This could be because of a war, a natural disaster like an earthquake, or other reasons. Think of it like playing hide and seek - if someone finds you and you have to move to a new hiding spot, that's kind of like being displaced.
This can be really scary and difficult for the person and their family. They might have to leave behind their toys, clothes, and other things that are important to them. They might also have to go live somewhere very different from where they're used to, with different food, language, and customs.
But there are people who try to help displaced persons. For example, there are some organizations that provide food, shelter, and medical care to those in need. There are also people who work to find new homes for displaced persons, where they can feel safe and start to rebuild their lives. And everyone can help, by donating money or time to these organizations, or by simply being kind and welcoming to people who are new to their communities.