Knowledge about PI and green card

Permanent residence is PR, right? What is pi? I don’t know if you spelled it wrong. PermanentResidence is very vivid.

Green card is a permanent residence permit. The English name for green card is green card. There is nothing wrong with the translation. Originally, the name green card is also the image of the American people. It is not an official name. The United States issued a permanent residence permit earlier. The card was green, so everyone gave it the familiar name green card. The Chinese later also called it green card. The green card is not a temporary residence permit. Most countries have a temporary residence permit for the United States. If you want It is temporary residence. There must be a reason, such as traveling, studying abroad, working, and visiting relatives. Specific visas will be issued. There is no unified thing called "temporary residence permit". Only tourism is issued according to the purpose of your visit to this country. Visas, study visas, work visas, etc.

Nowadays, green card has been referred to in general. Not only the permanent residence visas of the United States but other countries can be called green cards, but they don’t seem to be green.