He is in serious danger.

In this class, various nationalities coexist.

People of various nationalities are mixed in this party.

We respect the principle of monogamy.

It was revealed that he was polygamous, which became a big problem.

We are planning to hold a student get-together this weekend.

He grew up in poverty.

He is so poor that he can't even afford to buy ingredients to make a meal.

In this context, the meaning of the word is different.

Mixed bathing is allowed at this hot spring.