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general::
noun sth that is added ADJ. useful, valuable, welcome, worthy | important, major, notable, significant | latest, new, recent VERB + ADDITION make We have made several additions to the collection recently. PREP. ~ to the latest addition to the family (= a new baby) process of adding numbers/amounts ADJ. simple He worked it out through simple addition. VERB + ADDITION do She can do addition, but she hasn't learned subtraction yet.
Oxford Collocations Dictionary