Summing

verb

1. To join or unite so as to bring about an increase or improvement

   "adds 60 acres to his land"

2. To say further append

   "Do you have anything else to add to the discussion?"

3. To combine (numbers) into an equivalent simple quantity or number
4. To include as a member of a group

   "Don't forget to add me in."

5. To perform addition
6. To come together or unite by addition

   "The facts added together to support his theory."

7. To serve as an addition

   "The movie will add to his fame."

8. To make an addition

   "added to her savings"

verb

1. To come to the expected total

   "the bill doesn't add up"

2. To form an intelligible pattern make sense

   "her story just doesn't add up"

3. Amount
4. To amount to a lot

   "just a little each time, but it all adds up"

5. To form an opinion of

   "added him up at a glance"

phrasal verb

1. To make (something) larger, better, or greater

   "He bought another rare coin to add to his collection."