sum-n; 5 Senses

Sense Number 1: an amount of money, a price paid or received

Commentary: SUM[+quantity][+amount][+money]
NOTE: always refers to money

The interior decorator charged them an enormous sum for redoing just the dining room.
There were sums of money involved in that deal.
They are buying the small firm for an undisclosed sum.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: the resulting quantity of performing the mathematical operation of addition

Commentary: SUM[+quantity][+total][+computation][+addition][+mathematical]
NOTE: refers to the resulting value, not the act of computing (Sense 4)

What is the sum of six plus four?
The test included some problems requiring you to find vector sums.
The sum of these two prime numbers is not itself a prime.

WordNet 3.0 Sense Numbers: 2, 6

Sense Number 3: a total aggregation of things

Commentary: SUM[+entity][+group][+aggregation]
NOTE: refers to a bunch of things, parts, stuff, not a number value (Sense 2)

What if the sum of human knowledge could be contained on a single microchip?
The sum of the team's experience is a formidable asset for the company.
In this case the whole is bigger than the sum of its parts.

WordNet 3.0 Sense Numbers: 3, 5

Sense Number 4: the core or essence of something

Commentary: SUM[+quality][+essence]
NOTE: includes the idiom, in_sum, which means 'in summary', a kind of core or essence.

The sum of his argument was that pollution is bad and someone should pay for it.
The sum of the matter is that we need to hire a lawyer.
In sum, this experiment does little to further our understanding of metabolic pathways.
And that, in sum, is her view of the world.

WordNet 3.0 Sense Numbers: 4

Sense Number 5: the task of performing mathematical addition

Commentary: SUM[+activity][+task][+mathematical][+addition]
NOTE: refers to an actor performing the act of addition, not the resulting number value.

The children were doing sums in class today.
Let Sally figure the bill, she's good at sums.
Little Johnny is better at sums than he as at reading.

WordNet 0.0 Sense Numbers: 3