envelope
it is a envelope.
an envelope :)
An envelope is a flat paper container used for sending letters or thin packages through the mail. It typically has a flap that can be sealed to protect the contents inside.
envelope
envelope
Envelope
bums
Envelope
Flat rate shipping pricing varies by the size of the container one would ship the an item in. The price ranges from $5.05 for a small envelope to $16.85 for a large box.
As flat as paper, if you want
The noun meaning "a flat container for a letter" is spelt envelope. The verb meaning "to enclose or enfold" is spelt envelop.
Cartographers an represent the spherical Earth on flat paper by making a projection, which is like casting shadows from the spherical world onto a flat piece of paper.