› [C] MONEY, FINANCE an amount of money: Share price slid by 1p to 142p fuelled by concerns that the company might offer too generous a sum for the proposed venture in India. The sale of Germany's biggest commercial TV operator **for an undisclosed sum** follows a bidding contest. Banks may not be prepared to open an account if **the sum involved** is too small.large/huge/enormous sums Restrictions have been imposed by the government on the movement of large sums of money out of the country.a small/modest/substantial sum A substantial sum has been set aside for litigation relating to the construction project.an additional/cash/final sum The final sum an investor receives from a pension is dependent on the rate of investment growth. **vast/huge/considerable sums**a sum of $8/£2,000/€1.2m, etc. Legislation approved yesterday will raise a much-needed sum of £300,000 for use on the roads.pay (out)/spend/invest a sum Deposits are non-recoverable cash sums paid just to reserve a property, with a further sum payable when contracts are exchanged.earn/receive/owe a sum Victims of an explosion at a chemical works are set to receive large sums in compensation.borrow/lend a sum First-time buyers are having to borrow huge sums to buy a home.

› [S] (also sum total) the number or amount that is the result of adding together two or more numbers or amounts: sum of sth In 2006, the sum of all income for residents of Colorado rose by 6.5%.

› [C] UK a calculation that involves adding, subtracting, multiplying, or dividing numbers: You need to **do your sums** before deciding whether you would benefit more from a fixed-rate or a tracker mortgage. Amid the pressure to get their sums right, many funds have closed to new business.

› [S] (also sum total) the whole of something after all the different features or parts of it are considered: the sum of sth We believe that the sum of our business principles maximizes our chances of success.

more/greater than the sum of its parts › more powerful, effective, etc. as a whole than you would think if you considered the different features or parts that it consists of: The claimed logic of this latest merger is that the whole will be more than the sum of the parts.

in sum › used at the end of a report or discussion before giving a short description of the main ideas or facts: We're looking, in sum, for a major player who believes in newspapers as a serious business.

a princely/tidy sum › a large amount of money: She sold her story to the tabloids for a princely sum. We have **made a tidy sum** on our investments.

the princely sum of sth › used in a humorous way to refer to an unexpectedly small amount of money: The book was first published in the UK in 1972 for the princely sum of 40p.

→ See also capital sum, lump sum(Definition of sum from the Cambridge Business English Dictionary
© Cambridge University Press)

What is the pronunciation of sum?
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