addition

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noun ad·di·tion \ə-ˈdi-shən, a-\

Definition of addition

  1. 1 :  a part added (as to a building or residential section) The addition expanded the kitchen.

  2. 2 :  anything or anyone added :  increase The clerk was a recent addition to the staff.

  3. 3 :  the act or process of adding a recipe enhanced by the addition of freshly ground pepper; especially :  the operation of combining numbers so as to obtain an equivalent simple quantity schoolchildren learning about addition and subtraction

  4. 4 :  direct chemical combination of substances into a single product

in addition

  1. :  2besides, also The job requires a college degree and, in addition, at least two years of experience.

in addition to

  1. :  combined or associated with :  1besides 2 In addition to soup, several salads were served.

Examples of addition in a sentence

  1. The children learned addition and subtraction.

  2. The museum's collection includes several new additions.

Origin and Etymology of addition

addicion Anglo-French, from Latin addition-, additio, from addere —see add


First Known Use: 14th century

Other Building Terms


ADDITION Defined for English Language Learners

addition

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noun ad·di·tion \ə-ˈdi-shən, a-\

Definition of addition for English Language Learners

  • : the act or process of joining something to something else : the act or process of adding something

  • mathematics : the act or process of adding numbers

  • : something or someone more that is included : something or someone that is added


ADDITION Defined for Kids

addition

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noun ad·di·tion \ə-ˈdi-shən\

Definition of addition for Students

  1. 1 :  the act or process of adding numbers to obtain their sum

  2. 2 :  something added an addition to a house

in addition

  1. :  as something more

in addition to

  1. :  along with or together with There was ice cream in addition to cake and pie.



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