sum (redirected from summed up)

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.

See also: game

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in sum

in summary

sum up (something)

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.