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English definition of “addition”

addition

noun     /əˈdɪʃən/
[C] something extra that is added to something: an addition to sth The company provides a compensation package which amounts to an addition to the employee's salary.
[U] the act of adding something to something else: the addition of sth to sth The addition of women to the board was a deliberate diversity strategy.
[C] US ( UK extension) a new part added to a building: an addition to/on sth The commissioners plan to build an addition on the front of the building.
in addition to sth used for saying that something else exists or is included: In addition to movies, the company also published magazines.
(Definition of addition noun from the Cambridge Business English Dictionary © Cambridge University Press)
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