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verb double pronunciation in British English /ˈdʌb(ə)l/
Word Forms
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present tense
I/you/we/theydouble
he/she/itdoubles
present participledoubling
past tensedoubled
past participledoubled
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  1. 1
    [intransitive] to become twice as big, twice as much, or twice as many
    The number of people without work has doubled in the last five years.
    double in size/amount/price etc: Their house has doubled in value since they bought it.
    1. a.
      [transitive] to increase something so that it is twice as big, twice as much, or twice as many
      The government is threatening to double the tax on alcohol.
  2. 2

    double

    or

    double over

    [transitive] to fold something so that it has two layers of equal size

nanodegree

a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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hypocaust

an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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