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sum

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verb American English pronunciation: sum /sʌm/ 
Word Forms
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present tense
I/you/we/theysum
he/she/itsums
present participlesumming
past tensesummed
past participlesummed

phrasal verb

sum up

Word Forms
Close
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.

  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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