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sum
more/bigger/greater than the sum of its parts
Describes something made up of a large collection of things or people in which the total unit is more important, impressive, successful, etc., than its components are individually. America is certainly bigger than the sum of its parts. The global social networking site, so intrinsically connected to and supported by users, is certainly more than just the sum of its parts.
zero-sum game
A situation, process, competition, or outcome in which the winner's gain is exactly equal to the loser's loss. Poker is a zero-sum game because the amount of money won by one player is equivalent to the amount lost by the other players.
sum and substance
a summary; the gist. Can you quickly tell me the sum and substance of your proposal? In trying to explain the sum and substance of the essay, Thomas failed to mention the middle name of the hero.
sum (something) up
to give a summary of something. I would like to sum this lecture up by listing the main points I have covered. It is time for me to sum up. She summed up the president's speech in three sentences.
sum up (something)
also sum something up to give a brief but complete statement The last paragraph should sum up the main points of your argument. He's a small man with a big ego - that about sums him up. To sum up, Eleanor has promised to revise the designs, and Bernard will finalize the text.
in sum
See: in summaryin summary
(slightly formal) also in sum briefly In summary, this book is a good introduction to bird watching.
a zero-sum game
a situation where two people compete and if one of them wins anything, exactly the same must be lost by the other Radio has become a zero-sum game, with stations gaining listeners only at each other's expense.
sum and substance
The essence or gist of something, as in The sum and substance of their platform is financial conservatism. This redundant expression-both sum and substance here mean "essence"-has probably survived owing to alliteration. Shakespeare used it in The Two Gentlemen of Verona (4:1): "My riches are these poor habiliments [clothes], Of which if you should here disfurnish me, You take the sum and substance that I have."
sum total
The entirety, everything, as in I spent all day in the kitchen and the sum total of my efforts is this cake. [Mid-1600s]
sum up
Present the substance of, summarize, as in They always sum up the important news in a couple of minutes, or That expletive sums up my feelings about the matter. [Early 1600s]
sum up
v.1. To present the substance of something in a condensed form; summarize something: At the end of the radio program, they sum up the day's news. Here's what I learned—I'll sum it up for you. At the end of the lecture, the professor summed up.
2. To describe or assess something concisely: This poem sums up my feelings perfectly.
3. To add some set of numbers together: The teacher challenged the students to sum up the numbers from 1 to 100 as fast as possible. I wrote down all of our expenses for the week and summed them up.
4. To calculate something, especially by addition: We need to sum up our total costs for this trip. I'm sure this answer is correct—I summed it up myself.