Sum definition

sŭm
The whole amount, quantity, or number; an aggregate.

The sum of the team's combined experience.

noun
6
1
To get, or come to, a total.
verb
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1
A summary.

My view of the world, in sum.

noun
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3
An amount of money.

A sum paid in reparation.

noun
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2
To add together.
verb
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To give a summary of; summarize.
verb
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The whole amount; totality; aggregate.

The sum of our experience.

noun
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The gist or a summary of something said, done, etc.
noun
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(archaic) The highest degree; height; summit.
noun
1
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To determine the sum of by adding.
verb
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To summarize or review briefly; sum up.
verb
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affix
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The result of adding numbers or quantities. The sum of 6 and 9, for example, is 15, and the sum of 4 x and 5 x is 9 x.
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The definition of a sum is a total amount you arrive at by adding up multiple things, or the total amount of something that exists, or the total amount of money you have.

4 is an example of the sum of 2+2.

When you have $100, this is an example of the sum of money that you have.

noun
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The central idea or point; the gist.
noun
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An amount obtained as a result of adding numbers.
noun
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An arithmetic problem.

A child good at sums.

noun
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The result obtained by adding numbers or quantities; total.
noun
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(old-fashioned) A series of numbers to be added together, or any problem in arithmetic.
noun
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The limit of the sum of the first n terms of an infinite series as n grows indefinitely.
noun
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The set containing every element belonging to one or both of two original sets and no other elements.
noun
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In Boolean algebra,
noun
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noun
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A quantity obtained by addition or aggregation.

The sum of 3 and 4 is 7.

noun
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(often plural) An arithmetic computation, especially one posed to a student as an exercise (not necessarily limited to addition).

We're learning about division, and the sums are tricky.

noun
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A quantity of money.

A tidy sum.

The sum of forty pounds.

noun
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A summary; the principal points or thoughts when viewed together; the amount; the substance; compendium.

This is the sum of all the evidence in the case.

This is the sum and substance of his objections.

noun
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A central idea or point.
noun
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The utmost degree.
noun
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To give a summary of.
verb
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The basic unit of money in Kyrgyzstan.
noun
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The basic unit of money in Uzbekistan.
noun
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An amount of money.

Paid an enormous sum.

noun
4
5
(mathematics) To add.
verb
3
4
in sum
  • to put it briefly; in short
idiom
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1
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sum up
  • to add up or collect into a whole or total
  • to review briefly; summarize
idiom
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1

Other Word Forms

Noun

Singular:
sum
Plural:
sums

Idioms and Phrasal Verbs

Origin of sum

  • Middle English summe from Old French from Latin summa from feminine of summus highest uper in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From the Kazakh сом (som), the Kyrgyz сом (som), the Uyghur سوم (som), and the Uzbek soÊ»m, all of which have the core signification “pure", used in elliptical reference to historical coins of pure gold.

    From Wiktionary

  • Middle English summe, from Old French, from Latin summa, feminine of summus (“highest").

    From Wiktionary