Envelope Front of an envelope mailed in the U.S. in 1906, with a postage stamp and address Back of the above envelope, showing an additional receiving post office postmark An envelope is a common …

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The meaning of ENVELOPE is a flat usually paper container (as for a letter). How to use envelope in a sentence. How do you pronounce envelope?: Usage Guide.

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USPS shows you how to send a letter or postcard in the U.S., from choosing an envelope, writing the address, buying and applying stamps, and finding a drop-off location.

An envelope is the rectangular paper cover in which you send a letter to someone through the post.

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Aug 25, 2025 · But what exactly is an envelope, and what purpose does it serve? An envelope is a flat, usually rectangular or square paper container designed to enclose and protect items such as letters, …

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