Definitions for Envelopeˈɛn vəˌloʊp, ˈɑn-

This page provides all possible meanings and translations of the word Envelope

Random House Webster's College Dictionary

en•ve•lopeˈɛn vəˌloʊp, ˈɑn-(n.)

  1. a flat paper container, as for a letter or thin package, usu. having a gummed flap or other means of closure.

  2. something that envelops; a wrapper or surrounding cover.

  3. a surrounding or enclosing part, as an integument or an outer membrane.

    Category: Biology

  4. Geom. a curve or surface tangent to each member of a set of curves or surfaces.

    Category: Math

  5. the fabric structure enclosing the gasbag of an aerostat.

    Category: Aeronautics

  6. the gasbag itself.

    Category: Aeronautics

  7. the airtight glass or metal housing of a vacuum tube.

    Category: Electronics

  8. the technical limits within which an aircraft or electronic system may be safely operated.

Idioms for envelope:

  1. push the envelope,to stretch established limits, as in technological advance or social innovation.

    Category: Idiom

Origin of envelope:

1700–10; < F enveloppe, der. of envelopper to envelop

Princeton's WordNet

  1. envelope(noun)

    a flat (usually rectangular) container for a letter, thin package, etc.

  2. envelope(noun)

    any wrapper or covering

  3. envelope(noun)

    a curve that is tangent to each of a family of curves

  4. envelope(noun)

    a natural covering (as by a fluid)

    "the spacecraft detected an envelope of gas around the comet"

  5. envelope(noun)

    the maximum operating capability of a system (especially an aircraft)

    "test pilots try to push the envelope"

  6. envelope, gasbag(noun)

    the bag containing the gas in a balloon

Kernerman English Learner's Dictionary

  1. envelope(noun)ˈɛn vəˌloʊp, ˈɑn-

    a paper container for sending a letter, document, etc.

    Put it in the envelope and seal it.


  1. envelope(Noun)

    A paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing.

  2. envelope(Noun)

    Something that envelops; a wrapping

  3. envelope(Noun)

    A bag containing the lifting gas of a balloon or airship; fabric that encloses the gas-bags of an airship.

  4. envelope(Noun)

    A mathematical curve, surface, or higher-dimensional object that is the tangent to a given family of lines, curves, surfaces, or higher-dimensional objects.

  5. envelope(Noun)

    A curve that bounds another curve or set of curves, as the modulation envelope of an amplitude-modulated carrier wave in electronics.

  6. envelope(Noun)

    The shape of a sound, which may be controlled by a synthesizer or sampler.

  7. envelope(Noun)

    The information used for routing an email that is transmitted with the email but not part of its contents.

  8. envelope(Noun)

    An enclosing structure or cover, such as a membrane.

  9. envelope(Noun)

    The set of limitations within which a technological system can perform safely and effectively.

  10. envelope(Noun)

    The nebulous covering of the head or nucleus of a comet; a coma.

  11. Origin: From the enveloppe, from envelopper.

Webster Dictionary

  1. Envelope(noun)

    alt. of Envelop


  1. Envelope

    An envelope is a common packaging item, usually made of thin flat material. It is designed to contain a flat object, such as a letter or card. Traditional envelopes are made from sheets of paper cut to one of three shapes: a rhombus, a short-arm cross, or a kite. These shapes allow for the creation of the envelope structure by folding the sheet sides around a central rectangular area. In this manner, a rectangle-faced enclosure is formed with an arrangement of four flaps on the reverse side.

British National Corpus

  1. Written Corpus Frequency

    Rank popularity for the word 'Envelope' in Written Corpus Frequency: #4342

  2. Nouns Frequency

    Rank popularity for the word 'Envelope' in Nouns Frequency: #1976

Translations for Envelope

Kernerman English Multilingual Dictionary


a thin, flat wrapper or cover, especially for a letter

The letter arrived in a long envelope.

Get even more translations for Envelope »


Find a translation for the Envelope definition in other languages:

Select another language:

Discuss these Envelope definitions with the community:


Use the citation below to add this definition to your bibliography:


"Envelope." STANDS4 LLC, 2014. Web. 20 Dec. 2014. <>.

Are we missing a good definition for Envelope?

The Web's Largest Resource for

Definitions & Translations

A Member Of The STANDS4 Network

Nearby & related entries:

Alternative searches for Envelope: