Here, adopt means to start using a new idea or way of doing something. People or groups choose to accept it and make it their own.
The school adopted a new teaching style.
We adopted a better way to save money.
In this use, adopt means to take on a way of behaving or a role. It is about choosing how to act or what attitude to have.
She adopted a serious tone during the speech.
He adopted the role of leader quickly.
Here adopt means to start using new technology or equipment. People or groups decide to use these new things in daily work or life.
Many companies adopted new software this year.
The city adopted electric buses for transport.
This meaning is about officially accepting laws or decisions. A group or organization agrees to use these rules or plans.
The council adopted the new rules today.
The board adopted the budget plan quickly.
This meaning is about accepting a new culture, language, or identity. It is often used when someone changes to fit into a new group.
They adopted local customs after moving there.
The boy adopted his new family's language.
This use means to take a pet or animal into your home to care for it. You become responsible for the animal.
They adopted a dog from the shelter.
We adopted a cat last week.