envelop

An envelope is a container that holds letters and other small items.

When people think about sending something through the mail, they often think of an envelope. You'll usually see envelopes at your home or office with stamps on them, waiting to be sent. Businesses also use envelopes to send bills, invoices, and packages to their customers. Sometimes you might get a big package in an envelope - these are called padded envelopes, which give extra protection for items like electronics or gifts. Envelopes come in all shapes and sizes, but they all serve the same purpose: to keep what's inside safe while it travels to its destination.