envelope

noun

en·​ve·​lope ˈen-və-ˌlōp How to pronounce envelope (audio) ˈän- How to pronounce envelope (audio)
1
: a flat usually paper container (as for a letter)
2
: something that envelops : wrapper
the envelope of air around the earth
3
a
: the outer covering of an aerostat
b
: the bag containing the gas in a balloon or airship
4
a
: a natural enclosing covering (such as a membrane, shell, or integument)
b
: a lipoprotein unit membrane that forms the outer layer of some virions
5
a
: a curve tangent to each of a family of curves
b
: a surface tangent to each of a family of surfaces
6
: a set of performance limits (as of an aircraft) that may not be safely exceeded
also : the set of operating parameters that exists within these limits
7
: a conventionally accepted limit
new computers that push the envelope
How do you pronounce envelope?: Usage Guide

The \ˈen-\ and \ˈän-\ pronunciations are used with about equal frequency, and both are fully acceptable, though the \ˈän-\ version is sometimes decried as "pseudo-French." Actually \ˈän-\ is exactly what one would expect to hear when a French word like entrepreneur is becoming anglicized. Envelope, however, has been in English for nearly 300 years, plenty of time for it to become completely anglicized and for both of its pronunciations to win respectability.

Examples of envelope in a Sentence

Recent Examples on the Web Like students at Hogwarts waiting to see which house they'd been assigned, the couple nervously opened the envelope, hoping to see their dream location. Madeline Gunderson, USA TODAY, 29 Mar. 2024 Pennsylvania officials recently redesigned the outer envelopes for the mail-in ballots to try to remind voters to write the current date under their signatures. Hansi Lo Wang, NPR, 27 Mar. 2024 Separate staff members then review the ballots, stamp them with Woodall's initials and complete the assembly process by making sure each prepared envelope has a ballot. Journal Sentinel, 21 Mar. 2024 However, a glimpse behind the curtain — er, uh, envelope — has emerged in backstage photos. Dustin Nelson, EW.com, 11 Mar. 2024 Cena took the stage with nothing but an oversized winner's envelope to cover his groin area...and a pair of Birkenstocks. Kelly Wynne, Peoplemag, 11 Mar. 2024 These are protected by envelope closures that get rid of the need for bulky zips but can make getting things out a little finickity. Jessica MacDonald, Travel + Leisure, 22 Mar. 2024 Cut scallops into the top of a 3x5-inch envelope to make a cloud. Nicole Harris, Parents, 20 Mar. 2024 At the ceremony the night before, which Kimmel hosted for the fourth time, Cena took the stage seemingly nude, covering himself with a winner’s envelope to present the award for best costume design. Zoe G Phillips, The Hollywood Reporter, 11 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'envelope.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

circa 1714, in the meaning defined at sense 1

Time Traveler
The first known use of envelope was circa 1714

Dictionary Entries Near envelope

Cite this Entry

“Envelope.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/envelope. Accessed 19 Apr. 2024.

Kids Definition

envelope

noun
en·​ve·​lope ˈen-və-ˌlōp How to pronounce envelope (audio) ˈän- How to pronounce envelope (audio)
1
: a flat usually paper container (as for a letter)
2
: something that envelops
3
: the bag containing the gas in a balloon or airship
4
: a natural enclosing covering (as a membrane)

Medical Definition

envelope

noun
en·​ve·​lope ˈen-və-ˌlōp How to pronounce envelope (audio) ˈän- How to pronounce envelope (audio)
: a natural enclosing covering (as a membrane or integument)
especially : a lipoprotein unit membrane that forms the outer layer of some virions and surrounds the viral capsid
These glycoprotein complexes, swept up by the budding virus as it acquires its envelope, are crucial to HIV's ability to infect new cells. William A. Haseltine et al., Scientific American
Last Updated: - Updated example sentences
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