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sum - definition and synonyms

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verb     sum pronunciation in British English
Word Forms
present tense
present participlesumming
past tensesummed
past participlesummed

phrasal verb

sum up

Word Forms
present tense
I/you/we/theysum up
he/she/itsums up
present participlesumming up
past tensesummed up
past participlesummed up
  1. 1
    [intransitive/transitive] to give a summary of something

    I’ll sum up briefly and then we’ll take questions.

    Summing up the discussion, he said that all parties would consider how best to resolve the problem.

    1. a.
      legal if a judge sums up a case, they give a summary of all the evidence that has been given

      The judge will sum up the evidence tomorrow.

      Summing up, Mr Justice Kay directed the jury to consider whether the accused had acted intentionally.

  2. 2
    [transitive] to make a statement that shows what something or someone is like

    Her reply seemed to sum up the attitude of all the refugees.

  3. 3
    [transitive] to make a judgment about what someone or something is like

    I’d already summed him up, and I knew he’d be difficult to work with.


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