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English definition of “addition”

addition

noun     /əˈdɪʃən/
in addition (to sth) B1 added to what already exists or happens, or more than you already do or have: In addition to teaching, she works as a nurse in the holidays.Becoming biggerEnlarging and inflating
CALCULATION [U] B2 the process of adding numbers or amounts together in order to get a totalCalculations and calculatingAddition, subtraction, multiplication and divisionAddition, subtraction, multiplication and divisionCalculations and calculating
NEW [C] B2 a new or extra thing that is added to something: Baby Sam is the latest addition to their family.Becoming biggerEnlarging and inflatingConnecting and combiningVariety and mixturesMixing and mixturesThings added or attached to other things
(Definition of addition noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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