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   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

   • E

     1

   • X

     8

   • T

     1

   • E

     1

   • N

     1

   • S

     1

   • I

     1

   • O

     1

   • N

     1

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