noun
addition
uh-DIHSH-uhn
noun
1
The arithmetic operation of combining numbers to find a total.
"Children usually learn addition before subtraction."
"The calculator handles addition, subtraction, multiplication, and division."
2
Something new that has been added to something else.
"The new hire is a great addition to the team."
"They built an addition onto the back of the house."
How to Use Addition
Learner’s notesIn plain EnglishEither the math operation of adding numbers, or something extra that has been added.
Common pairings
in addition to
a welcome addition
basic addition
Word Forms
additions plural
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Children usually learn _____ before subtraction.
Etymology
From Old French adition, from Latin additio, from addere, "to add."