1. (

• sum ,
• sum_of_money ,
• amount ,
• amount_of_money

) a quantity of money; "he borrowed a large sum"; "the amount he had in cash was insufficient" ;

2. (

• sum ,
• amount ,
• total

) a quantity obtained by the addition of a group of numbers ;

3. (

• sum ,
• summation ,
• sum_total

) the final aggregate; "the sum of all our troubles did not equal the misery they suffered" ;

4. (

• kernel ,
• substance ,
• core ,
• center ,
• centre ,
• essence ,
• gist ,
• heart ,
• heart_and_soul ,
• inwardness ,
• marrow ,
• meat ,
• nub ,
• pith ,
• sum ,
• nitty-gritty

) the choicest or most essential or most vital part of some idea or experience; "the gist of the prosecutor's argument"; "the heart and soul of the Republican Party"; "the nub of the story" ;

5. (

• sum ,
• total ,
• totality ,
• aggregate

) the whole amount ;

6. (

• union ,
• sum ,
• join

) a set containing all and only the members of two or more given sets; "let C be the union of the sets A and B" ;

1. (

• summarize ,
• summarise ,
• sum ,
• sum_up

) be a summary of; "The abstract summarizes the main ideas in the paper" ;

2. (

• total ,
• tot ,
• tot_up ,
• sum ,
• sum_up ,
• summate ,
• tote_up ,
• add ,
• add_together ,
• tally ,
• add_up

) determine the sum of; "Add all the people in this town to those of the neighboring town" ;