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supplement - definition and synonyms


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verb [transitive] supplement pronunciation in American English /ˈsʌpləˌment/
Word Forms
present tense
present participlesupplementing
past tensesupplemented
past participlesupplemented
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  1. to add something extra in order to improve something or make it bigger
    Heat from the chimneys is pumped back in to supplement the heating system.
    supplement something with something: Our findings are supplemented with material from other surveys.
    1. a.
      to add extra money to the amount that you normally earn
      supplement your income/salary etc.: He was able to supplement his income by writing stories.
    2. b.
      to add extra or different food to the amount that you normally eat
      Their diet was often supplemented by home-grown vegetables.

derived word


 supplement pronunciation in American English /ˌsʌpləmenˈteɪʃ(ə)n/ noun [uncountable]


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

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