American English

Definition of double adjective from the Oxford Advanced American Dictionary

      

    double

     adjective
    adjective
    NAmE//ˈdʌbl//
     
    [usually before noun]
     
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    twice as much/many
  1. 1twice as much or as many as usual a double helping two double whiskies
  2. with two parts
  3. 2having or made of two things or parts that are equal or similar double doors a double-page advertisement “Otter” is spelled with a double t. My extension is two four double 0 (2400).
  4. for two people
  5. 3 made for two people or things a double bed/room compare single (4)
  6. combining two things
  7. 4combining two things or qualities a double meaning/purpose/aim It has the double advantage of being both easy and cheap.
  8. Which Word?double / dualThese adjectives are frequently used with the following nouns:
    double ~dual ~
    bedpurpose
    doorsfunction
    figuresrole
    standardsapproach
    thicknesscitizenship
    Dual describes something that has two parts, uses, or aspects. Double can be used with a similar meaning, but when it is used to describe something that has two parts, the two parts are usually the same or very similar. Double, but not dual, can describe something that is made for two people or things, or is twice as big as usual.
See the Oxford Advanced Learner's Dictionary entry: double