the aggregate of two or more numbers, magnitudes, quantities, or particulars as determined by or as if by the mathematical process of addition

The sum of 6 and 8 is 14.

a particular aggregate or total, esp. with reference to money

The expenses came to an enormous sum.

an indefinite amount or quantity, esp. of money

to lend small sums.

a series of numbers or quantities to be added up.

an arithmetical problem to be solved, or such a problem worked out and having the various steps shown.

the full amount, or the whole.

the substance or gist of a matter, comprehensively or broadly viewed or expressed

the sum of his opinions.

concise or brief form

in sum.

Mathematics .

the limit of the sequence of partial sums of a given infinite series.

union ( def. 10a ) .

a summary.

to combine into an aggregate or total (often fol. by up ).

to ascertain the sum of, as by addition.

to bring into or contain in a small compass (often fol. by up ).

to amount (usually fol. by to or into )

Their expenses summed into the thousands.

sum up,

to reckon

We summed up our assets and liabilities.

to bring into or contain in a brief and comprehensive statement; summarize

to sum up the case for the prosecution.

to form a quick estimate of

I summed him up in a minute.

noun

fraction , part

noun

aggregate , all , amount , body , bulk , entirety , entity , epitome , gross , integral , mass , quantity , reckoning , rsum , score , structure , summary , summation , sum total , synopsis , system , tally , totality , value , whole , works * , worth , everything , total , recapitulation , rundown , run-through , summing-up , wrap-up , add , addition , calculate , complement , count , epitomize , example , extent , figure , gist , height , integer , magnitude , measure , nominal , number , numeral , problem , result , substance , summarize

verb

cast , foot , tot , total , totalize

phrasal verb

abstract , epitomize , go over , recapitulate , run down , run through , summarize , synopsize , wrap up