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supplement - definition and synonyms


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verb [transitive] supplement pronunciation in British English /ˈsʌplɪment/
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.

derived word


 supplement pronunciation in British English /ˌsʌplɪmenˈteɪʃ(ə)n/ noun [uncountable]

sea lion

in an online conversation, repeatedly asking a person questions which suggest that you are interested in what they are talking about, but are actually intended to annoy them

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an electric skateboard

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