Definition of breakthrough noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈbreɪkθruː//
; NAmE NAmE//ˈbreɪkθruː//
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an important development that may lead to an agreement or achievement to make/achieve a breakthrough a significant breakthrough in negotiations a major breakthrough in cancer researchExtra examples The new deal represents a major breakthrough for the company. We have achieved a real breakthrough in the search for peace. a significant breakthrough in computer design the latest breakthrough in biotechnology
See the Oxford Advanced American Dictionary entry: breakthrough

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