envelope Definition

a flat paper container with a sealable flap, used to enclose a letter or document.

Using envelope: Examples

Take a moment to familiarize yourself with how "envelope" can be used in various situations through the following examples!

  • Example

    I put the letter in the envelope and sealed it.

  • Example

    The envelope was addressed to my office.

  • Example

    She opened the envelope and read the letter inside.

envelope Synonyms and Antonyms

Synonyms for envelope

Phrases with envelope

  • to go beyond the usual or normal limits of something


    The company is always trying to push the envelope with new technology.

  • an envelope with a transparent panel that reveals the address on the enclosed letter


    I used a window envelope so that the address would show through.

  • self-sealing envelope

    an envelope with a sticky strip that seals the flap without needing to be moistened


    I prefer to use self-sealing envelopes because they are more convenient.

Origins of envelope

from Old French 'enveloppe', meaning 'wrapper, covering'


Summary: envelope in Brief

An 'envelope' [ˈɛnvələʊp] is a flat paper container with a sealable flap used to enclose letters or documents. It can be addressed, sealed, and sent through the mail. The phrase 'push the envelope' means to go beyond the usual or normal limits of something.

How do native speakers use this expression?