sumsum1 /sʌm/ ●●○W2AWL noun [countable]1moneyMONEY an amount of moneyHe owes me a large sum of money.sum ofthe sum of £4,000large/substantial/considerable etc sumBill wants to spend a large sum on modernizing the farm.small/modest/trifling etc sumWe should be happy to buy it for a modest sum. →lump sum, → princely sumat princely(1)2 →the sum of something3 →greater/more/better etc than the sum of its parts4calculationHM a simplecalculation by adding, multiplying, dividing etc, especially one done by children at school5 →do your sums6 →in sum →sum totalCOLLOCATIONSphrasesa sum of moneyWe urge people not to keep large sums of money in their houses.adjectivesa large/considerable/substantial sumHe lost a substantial sum of money on the deal.a huge/enormous/vast sumThe company has invested huge sums in research.a five-figure/six-figure/seven-figure etc sum (=an amount in the ten thousands, hundred thousands etc )The newspaper paid a six-figure sum for the photograph of the princess.a small sumEach year the inhabitants had to pay a small sum for the use of the pasture.a modest sum (=not a very big amount of money)She had paid a modest sum for the paintings.an undisclosed sum (=an amount that is being kept secret)He sold the company for an undisclosed sum.a tidy sum informal (=a large amount of money)I had managed to save a tidy sum.the total sumThe total sum lost is believed to be around £2 million.the princely sum of ... (=a large amount – often used humorously to mean a small amount)They were surviving on the princely sum of £50 a week.For the princely sum of $8 million you too could live in a mansion like this.
sum• Three words to sum up the feelings of the Hereford fans on Saturday.• It is possible to sum up the Pauline arguments in terms of two directives.• Ask the taskorientatedmember to regularly sum up where the meeting has reached.From Longman Business Dictionarysumsum1 /sʌm/ noun [countable]1an amount of moneyLarge sums of money are spent on advertising campaigns.The company was sold for a sum estimated at $2.3 billion. →capital sum →lump sum2the sum ofACCOUNTING the totalproduced when you add two or more numbers togetherThe sum of the loans was nearly 360 billion yen.3British English a simple calculation done by adding, multiplying, dividing etcYou will have to do your sums (=calculate all the amounts involved), because interest-free credit may not be the cheapest way to buy. → see alsosum of the digitssumsum2 verb (summed, summing) →sum up→ See Verb table