addition

noun

/əˈdɪʃ.ən/

Definition

B2 [U] the process of adding numbers or amounts together: Twice a week the children are tested in basic mathematical skills such as addition (= calculating the total of different numbers put together) and subtraction.Augmenting and supplementingAddition, subtraction, multiplication and divisionCalculations and calculating in addition (to) B1 as well (as): In addition to his flat in London, he has a villa in Italy and a castle in Scotland.Also, extra, and in addition B2 [C] something that has been added to something else: A secretary would be a welcome/useful addition to our staff.humorous I hear you're expecting a small addition to the family (= you are going to have a baby)!Things added or attached to other things › [C] the act of adding a substance or thing to something else: Most working environments are improved by the addition of (= by adding) a few plants and pictures.Things added or attached to other things

(Definition of addition noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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