Meaning of sum by Wiktionary Dictionary
Explanation of sum by Wordnet Dictionary
sum
 ( UK, US ) enPR: sŭm, IPA: /sʌm/, XSAMPA: /sVm/
 Rhymes: ʌm
 Homophone: some
 A quantity obtained by addition or aggregation .
 ( UK, Ireland ) An arithmetic computation, especially one posed to a student as an exercise ( not necessarily limited to addition. )
 A quantity of money .
 A summary .
 A central idea or point .
 The utmost degree .
 ( obsolete ) An old English measure of corn equal to the quarter.
 ( quantity obtained by addition or aggregation ): amount, sum total, summation, total, totality
 ( arithmetic computation ): calculation, computation
 ( quantity of money ): amount, quantity of money, sum of money
 ( summary ): See summary
 ( central idea or point ): center/centre, core, essence, gist, heart, heart and soul, inwardness, kernel, marrow, meat, nub, nittygritty, pith substance
 ( utmost degree ): See summit
 ( obsolete: old English measure of corn ): quarter
 addition: ( augend ) + ( addend ) = ( sum )
 ( transitive ) To add together.
 ( transitive ) To give a summary of .
 English: some
Pronunciation
Etymology 1
Middle English summe, from Old French, from Latin summa, feminine of summus ( “highest” ) .
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Verb
sum ( thirdperson singular simple present sums present participle summing, simple past and past participle summed )
Synonyms
Etymology 2
From Uzbek .
Noun
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sum
Explanation of sum by Wordnet Dictionary
sum

the choicest or most essential or most vital part of some idea or experience

a set containing all and only the members of two or more given sets

a quantity of money
 Sum n. [OE. summe, somme, OF. sume, some, F. somme, L. summa, fr. summus highest, a superlative from sub under. See Sub, and cf. Supreme.]
1. The aggregate of two or more numbers, magnitudes, quantities, or particulars; the amount or whole of any number of individuals or particulars added together; as, “the sum of 5 and 7 is 12”.
Take ye the sum of all the congregation. Num. i. 2.
☞ Sum is now commonly applied to an aggregate of numbers, and number to an aggregate of persons or things.
2. A quantity of money or currency; any amount, indefinitely; as, “a sum of money; a small sum, or a large sum”. “The sum of forty pound.” Chaucer.
With a great sum obtained I this freedom. Acts xxii. 28.
3. The principal points or thoughts when viewed together; the amount; the substance; compendium; as, “this is the sum of all the evidence in the case; this is the sum and substance of his objections”.
4. Height; completion; utmost degree.
Thus have I told thee all my state, and brought
My story to the sum of earthly bliss. Milton.
5. ( Arith. ) A problem to be solved, or an example to be wrought out. Macaulay.
A sum in arithmetic wherein a flaw discovered at a particular point is ipso facto fatal to the whole. Gladstone.
A large sheet of paper . . . covered with long sums. Dickens.
Algebraic sum, as distinguished from arithmetical sum, the aggregate of two or more numbers or quantities taken with regard to their signs, as + or , according to the rules of addition in algebra; thus, the algebraic sum of 2, 8, and 1 is 5.  In sum, in short; in brief. [Obs.] “In sum, the gospel . . . prescribes every virtue to our conduct, and forbids every sin.” Rogers.
 Sum, v. t. [imp. & p. p. Summed ; p. pr. & vb. n. Summing.] [Cf. F. sommer, LL. summare.]
1. To bring together into one whole; to collect into one amount; to cast up, as a column of figures; to ascertain the totality of;  usually with up.
The mind doth value every moment, and then the hour doth rather sum up the moments, than divide the day. Bacon.
2. To bring or collect into a small compass; to comprise in a few words; to condense;  usually with up.
“Go to the ant, thou sluggard,” in few words sums up the moral of this fable. L'Estrange.
He sums their virtues in himself alone. Dryden.
3. ( Falconry ) To have ( the feathers ) full grown; to furnish with complete, or fullgrown, plumage.
But feathered soon and fledge
They summed their pens [wings]. Milton.
Summing up, a compendium or abridgment; a recapitulation; a résumé; a summary.
Syn.  To cast up; collect; comprise; condense; comprehend; compute.
Verb
Noun
Definition of sum by GCIDE Dictionary