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English definition of “breadth”

breadth

noun [U]  /bretθ, bredθ/ us  
the distance from one side of an object to the opposite side, esp. when it is shorter than the distance between the object’s other two sides: The length of this box is twice its breadth. Breadth is also the range or areas of knowledge or ability that someone has: The breadth of his knowledge of history was impressive.
(Definition of breadth from the Cambridge Academic Content Dictionary © Cambridge University Press)
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