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Definition of extension noun from the Oxford Advanced Learner's Dictionary

extension

noun
 
/ɪkˈstenʃn/
 
/ɪkˈstenʃn/
Idioms
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    increasing influence

  1. [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
    • The bank plans various extensions to its credit facilities.
    • My home life was becoming no more than an extension of my job.
    Extra Examples
    • The company sees brand extensions as a means of tempting back customers.
    • The team appraisal is a logical extension of the individual appraisal interview.
    • This new job is a further extension of his role as a manager.
    Oxford Collocations Dictionaryadjective
    • considerable
    • great
    • major
    See full entry
  2. of building

  3. [countable] extension (to something)
    (North American English also addition)
    a new room or rooms that are added to a house
    • They're building an extension to their house.
    Collocations Decorating and home improvementDecorating and home improvementHouses
    • refurbish/​renovate/ (British English) do up a building/​a house
    • convert a building/​house/​room into homes/​offices/(especially North American English) apartments/(British English) flats
    • extend/​enlarge a house/​building/​room/​kitchen
    • build (British English) an extension (to the back/​rear of a house)/(North American English) an addition (on/​to something)/(British English) a conservatory
    • knock down/​demolish a house/​home/​building/​wall
    • knock out/​through the wall separating two rooms
    Decoration
    • furnish/​paint/ (especially British English) decorate a home/​a house/​an apartment/​a flat/​a room
    • be decorated in bright colours/​in a traditional style/​with flowers/​with paintings
    • paint/​plaster the walls/​ceiling
    • hang/​put up/​strip off/​remove the wallpaper
    • install/​replace/​remove the bathroom fixtures/(British English) fittings
    • build/​put up shelves
    • lay wooden flooring/​timber decking/​floor tiles/​a carpet/​a patio
    • put up/​hang/​take down a picture/​painting/​poster/​curtain
    DIY/​home improvement
    • do (British English) DIY/​carpentry/​the plumbing/​the wiring
    • make home improvements
    • add/​install central heating/​underfloor heating/​insulation
    • fit/​install double-glazing/​a smoke alarm
    • insulate your house/​your home/​the walls/​the pipes/​the tanks/(especially British English) the loft
    • fix/​repair a roof/​a leak/​a pipe/​the plumbing/​a leaking (especially British English) tap/(North American English usually) faucet
    • block/​clog (up)/unblock/​unclog a pipe/​sink
    • make/​drill/​fill a hole
    • hammer (in)/pull out/​remove a nail
    • tighten/​untighten/​loosen/​remove a screw
    • saw/​cut/​treat/​stain/​varnish/​paint wood
    Topics Houses and homesc1, Buildingsc1
    Oxford Collocations Dictionaryadjective
    • planned
    • proposed
    • home
    verb + extension
    • add
    • build
    preposition
    • extension to
    See full entry
  4. [countable] a new part that is added to a building
    • a planned two-storey extension to the hospital
    Oxford Collocations Dictionaryadjective
    • planned
    • proposed
    • home
    verb + extension
    • add
    • build
    preposition
    • extension to
    See full entry
  5. extra time

  6. [countable] extension (of something) an extra period of time allowed for something
    • He's been granted an extension of the contract for another year.
    • a visa extension
    • She was given an extension to finish writing her thesis.
    • (British English) The pub had an extension (= was allowed to stay open longer) on Christmas Eve.
    Extra Examples
    • He's applied for an extension of his visa.
    • The player has signed a five-year contract extension.
    Oxford Collocations Dictionaryadjective
    • one-week
    • two-year
    • etc.
    verb + extension
    • apply for
    • ask for
    • request
    See full entry
  7. phone

  8. [countable]
    (abbreviation ext.)
    a phone line with its own number, connected to a switchboard in a large building
    • What's your extension number?
    • Can I have extension 4332 please?
    • I'll give you my extension number, so you can phone me directly.
    Topics Phones, email and the internetc1
    Oxford Collocations Dictionaryadjective
    • planned
    • proposed
    • home
    verb + extension
    • add
    • build
    preposition
    • extension to
    See full entry
  9. making something longer/larger

  10. [uncountable, countable] the act of making something longer or larger; the thing that is made longer and larger
    • The extension of the subway will take several months.
    • extensions to the original railway track
    Oxford Collocations Dictionaryadjective
    • considerable
    • great
    • major
    See full entry
  11. hair

  12. (also hair extension)
    [countable, usually plural] pieces of artificial hair that are added to somebody's own hair to make it longer
    • These extensions are very easy to use and won't damage your own hair.
  13. college/university

  14. [countable] (used before another noun) a part of a college or university that offers courses to students who are not studying full-time; a programme of study for these students
    • La Salle Extension University
    • extension courses
    Topics Educationc2
    Oxford Collocations Dictionaryadjective
    • planned
    • proposed
    • home
    verb + extension
    • add
    • build
    preposition
    • extension to
    See full entry
  15. computing

  16. [countable] the set of three letters that are placed after the dot (= small round mark) at the end of the name of a file and that show what type of file it is
    • The extension .doc indicates a word-processing file.
    Topics Computersc2
  17. electrical

  18. [countable]
    (also extension lead (both British English), North American English extension cord)
    an extra length of electric wire, used when the wire on an electrical device is not long enough
  19. Word Originlate Middle English: from late Latin extensio(n-), from extendere ‘stretch out’, from ex- ‘out’ + tendere ‘stretch’.
Idioms
by extension
  1. (formal) taking the argument or situation one stage further
    • The blame lies with the teachers and, by extension, with the Education Service.
    Topics Opinion and argumentc2
See extension in the Oxford Advanced American DictionarySee extension in the Oxford Learner's Dictionary of Academic English
unclear
adjective
 
 
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