A human rights defender is a person who makes sure that everyone is treated fairly and equally. They help protect the rights of people who may not have a voice or power to defend themselves.
Imagine you and your friends are playing with toys, and one of your friends doesn't have any toys to play with. If you stand up for your friend and share your toys with him, you are a human rights defender. You're making sure that everyone has the same opportunity to have fun and play.
In real life, human rights defenders do things like help stop discrimination, protect freedom of speech, and make sure that people are not being mistreated or hurt. They fight for basic human rights such as the right to food, shelter, education, and healthcare for all people, regardless of their race or gender.
Human rights defenders can be activists, journalists, lawyers, or even ordinary people like you and me. They try to make the world a better place and ensure that everyone is treated with dignity and respect.