An expatriate is someone who lives in a different country from the one they were born in or grew up in. It's like when you go on a vacation to a different country, but instead of going back home, you stay there for a longer time.
For example, if you were born in the United States but then move to Brazil, you would be an expatriate. It can be exciting because you get to experience new foods, cultures, and ways of doing things. But it can also be challenging because you might not know the language or customs very well, and it can be hard to make friends.
Expatriates often move to a different country because of work, family or personal reasons. Some people choose to stay in another country for many years or even for the rest of their lives. When you become an expatriate, you might have to learn a new language, find a new job or school, and adapt to a different way of life. It can be scary at first, but it can also be a great adventure.