sum

[[t]sʌm[/t]]

n. v. summed, sum•ming

1) math. 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[/ex]

2) an amount or quantity, esp. of money:

to lend small sums[/ex]

3) math. a series of numbers or quantities to be added up

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

5) cvb the full amount, or the whole:

the sum of our knowledge[/ex]

6) the main idea, gist, or point:

the sum and substance of his argument[/ex]

7) a summary

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

9) math. to ascertain the sum of, as by addition

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

11) to amount

12) phv sum up

a) to express in a brief and comprehensive statement; summarize

b) to form a quick estimate or judgment of

•

- in sum

Etymology: 1250–1300; < L summa sum, n. use of fem. of summus highest, superl. of superus (see superior) sum`ma•bil′i•ty, n. sum′ma•ble, adj.