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1. Dictionary

   extension

   /ɪkˈstɛnʃn/

   noun

   • 1. a part that is added to something to enlarge or prolong it: "the railway's southern extension" Similar additionadd-onadjunctaddendumaugmentationsupplementappendageappendixannexewingsupplementary buildingell
   • ▪ a room or rooms added to an existing building: "they hope to demolish the store and build a bar extension" Similar additionadd-onadjunctaddendumaugmentationsupplementappendageappendixannexewingsupplementary buildingell
   • ▪ lengths of artificial hair woven into a person's own hair to create a very long hairstyle.
   • ▪ the action or process of enlarging or extending something: "the extension of the President's powers" Similar expansionincreaseenlargementwideningbroadeningdeepeningdiversificationheighteningaugmentationenhancementamplificationdevelopmentgrowthcontinuationelongationlengtheningstretchingdrawing outOpposite shrinkingcontraction
   • ▪ an application of an existing system or activity to a new area: "direct marketing is an extension of telephone selling"
   • ▪ an additional period of time given to someone to hold office or fulfil an obligation: "the initial term of appointment is for one year, but an extension of two years is envisaged" Similar prolongationlengtheningincreaseprotractioncontinuationperpetuationpostponementdeferraldelaylonger periodmore/extra timeincreased timeadditional timeOpposite shortening
   • ▪ permission granted to licensed premises for the sale of alcoholic drinks until later than usual: British "drinks were served until the early hours of the morning, without any extension having been granted" Similar prolongationlengtheningincreaseprotractioncontinuationperpetuationOpposite shortening
   • ▪ an optional suffix to a filename, typically consisting of a full stop followed by several characters, indicating the file's content or function.
   • 2. a length of electric cable which permits the use of appliances at some distance from a fixed socket.
   • 3. a subsidiary telephone on the same line as the main one: "you can listen on the extension in the bedroom"
   • ▪ a subsidiary telephone in a large building, on a line leading from the main switchboard but having its own additional number: "contact Liz McDonald on extension 3514"
   • 4. the action of moving a limb from a bent to a straight position: "seizures with sudden rigid extension of the limbs"
   • ▪ the ability of a dancer to raise one leg above their waist, especially to the side: "she has amazing extension"
   • ▪ the application of traction to a fractured or dislocated limb or to an injured spinal column to restore it to its normal position.
   • ▪ the lengthening of a horse's stride at a particular pace.
   • 5. denoting instruction by a university or college arranged for people who are not full-time students: "a postgraduate extension course"
   • 6. the range of a term or concept as measured by the objects which it denotes or contains.
   • 7. the property of occupying space: "nature, for Descartes, was pure extension in space"

   Word Origin late Middle English: from late Latin extensio(n-), from extendere ‘stretch out’ (see extend).

   Derivatives

   • 1. extensional adjective

   Scrabble Points: 16

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   More definitions, origin and scrabble points

2. www.merriam-webster.com › dictionary › extensionExtension Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › extension

   • Cached

   The meaning of EXTENSION is the action of extending : state of being extended. How to use extension in a sentence.

3. dictionary.cambridge.org › dictionary › englishEXTENSION | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

   • Cached

   EXTENSION definition: 1. the fact of reaching, stretching, or continuing; the act of adding to something in order to make…. Learn more.

4. www.dictionary.com › browse › extensionEXTENSION Definition & Meaning - Dictionary.com

   www.dictionary.com › browse › extension

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   noun. an act or instance of extending, lengthening, stretching out, or enlarging the scope of something. Synonyms: dilation, increase, enlargement, expansion. Antonyms: contraction. the state of being extended, lengthened, or stretched out. that by which something is extended or enlarged; an addition: a four-room extension to a house.

5. www.collinsdictionary.com › dictionary › englishEXTENSION definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

   • Cached

   An extension is an extra period of time for which something lasts or is valid, usually as a result of official permission. Something that is an extension of something else is a development of it that includes or affects more people, things, or activities. That's the logical extension of my approach.

6. www.vocabulary.com › dictionary › extensionExtension - Definition, Meaning & Synonyms - Vocabulary.com

   www.vocabulary.com › dictionary › extension

   An extension is the act of getting more time, space, or length, like an extension of a deadline that gives you one more day to turn in a paper, or extensions that make your hair look longer. The noun extension comes from the Latin word extendere, meaning “stretch out.”

7. dictionary.cambridge.org › us › dictionaryEXTENSION | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

   • Cached

   EXTENSION meaning: 1. the fact of reaching, stretching, or continuing; the act of adding to something in order to make…. Learn more.

8. www.thefreedictionary.com › extensionExtension - definition of extension by The Free Dictionary

   www.thefreedictionary.com › extension

   • Cached

   ex·ten·sion. (ĭk-stĕn′shən) n. 1. The act of extending or the condition of being extended: the extension of the subway into the suburbs. 2. The amount, degree, or range to which something extends or can extend: The wire has an extension of 50 feet. 3. a. The act of straightening or extending a limb. b. The position assumed by an extended limb. 4.

9. www.oxfordlearnersdictionaries.com › definition › englishextension noun - Definition, pictures, pronunciation and usage...

   www.oxfordlearnersdictionaries.com › definition › english

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   increasing influence. [uncountable, countable] extension (of something) the act of increasing the area of activity, group of people, etc. that is affected by something. the extension of new technology into healthcare. a gradual extension of the powers of central government.

10. www.yourdictionary.com › extensionExtension Definition & Meaning - YourDictionary

    www.yourdictionary.com › extension

    • Cached

    Extension definition: The act of extending or the condition of being extended.

11. www.oxfordlearnersdictionaries.com › definition › american_englishextension noun - Definition, pictures, pronunciation and usage...

    www.oxfordlearnersdictionaries.com › definition › american_english

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    Definition of extension noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.