The meaning of ADDITION is a part added (as to a building or residential section). How to use addition in a sentence.

ADDITION definition: 1. the process of adding numbers or amounts together: 2. as well (as): 3. something that has been…. Learn more.

Addition, usually denoted with the plus sign +, is one of the four basic operations of arithmetic, the other three being subtraction, multiplication, and division. The addition of two whole numbers …

Addition is a mathematical operation in which two or more numbers or quantities are added together to form a sum. Learn more through illustrated examples.

An addition is something that has been joined or combined with something else to enhance it or provide more to it. Real-life examples: Recipes can be improved or made more flavorful by …

an addition to the family [=a new member of the family, such as a newborn baby] The sculpture is the newest addition to the museum's collection.

Definition of addition noun from the Oxford Advanced Learner's Dictionary. [countable] a thing that is added to something else. All of these technologies are fairly recent additions. This is a …