What context can I use each word in?
Learn when and how to use these words with these examples!
summation
Example
The summation of the series is 45. [summation: noun]
Example
The summation of the data shows a clear trend. [summation: noun]
addition
Example
The addition of 2 and 3 equals 5. [addition: noun]
Example
I made an addition to the list of items we need for the party. [addition: noun]
Good things to know
Which word is more common?
Addition is more commonly used than summation in everyday language. Addition is a more general term that can be used in a wide range of contexts, while summation is more limited to technical or scientific contexts.
What’s the difference in the tone of formality between summation and addition?
Summation is typically associated with a more formal or technical tone, while addition is more neutral and versatile in tone, allowing it to be used in both formal and informal contexts.