Definition:
A "green card" is a card that allows a person from another country to live and work permanently in the United States. It identifies the person as a legal resident, meaning they have permission to stay in the country.
In more advanced conversations, you might hear the term used in discussions about immigration policies, residency applications, or legal rights of residents.
While "green card" primarily refers to the U.S. immigration document, in a broader context (though less common), it might refer informally to any permission or pass that allows someone to do something, but this usage is not standard.
There are no specific idioms or phrasal verbs directly related to "green card," but you might hear phrases like "apply for a green card," which means to submit a request to get one.
A "green card" is an important document for anyone who wants to live and work permanently in the U.S.