Green envelope

So imagine that you have a letter that you want to send to someone. Usually, you put it in a normal white envelope and put a stamp on it. But sometimes, you might have something really important or secret that you don't want anyone else to see. That's where a green envelope comes in!

A green envelope is a special type of envelope that is made specifically for important or confidential documents. It's called a "green envelope" because it's usually green in color, but it can also be other colors, like blue or gray.

These envelopes are made with extra layers of security to make sure that no one else can read what's inside. For example, they might have a special pattern on the inside that makes it hard for someone to hold it up to the light and see through it.

Green envelopes are often used by companies or organizations to send important documents, like contracts or legal papers. They're also used by the government to send sensitive information or official documents.

So if you ever receive a green envelope in the mail, you'll know that it's something really important and you should treat it with extra care and attention!