sum /sʌm/noun 10verb 2forms 7phrases 1 noun10 •A quantity obtained by addition or aggregation.The sum of 3 and 4 is 7. •an amount of money that someone pays, gets or hasthe sum of forty pounds •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. •A summary; the principal points or thoughts when viewed together; the substance.This is the sum of all the evidence in the case.This is the sum and substance of his objections. •A central idea or point; gist. •The basic unit of money in Kyrgyzstan. •The basic unit of money in Uzbekistan. •A type of administrative district used in China, Mongolia, and Russia. In Mongolia, a sum is smaller than a province. In China, it is only used in Inner Mongolia, where it is equivalent to a township. •(literary, rare) The utmost degree; the greatest or most perfect realization (of some concept).Thus I have told thee all my State, and brought / My Storie to the sum of earthly bliss[…] — 1667 •(no longer used) An old English measure of corn equal to the quarter.The sum is also used for the quarter, and the strike for the bushel. — 1882 verb2 •To add together.when you say that stability and change are, it's because you're summing them up together as embraced by it, and taking note of the communion each of them has with being. — 2005 •To give a summary of. formssumm'd · summed · summing · summeth · sums · summest · sumy Phrases with sum sum upTo produce a total by adding.