KimberleyPronunciation: /ˈkɪmbəli/Definition of Kimberley 1a city in South Africa, the capital of Northern Cape; population 183,000 (est. 2009). It has been a diamond-mining centre since the early 1870s. [named after the 1st Earl of Kimberley, a British Colonial Secretary] 2 (also the Kimberleys) a plateau region in the far north of Western Australia. It was the scene of a gold rush in 1885. Kimberley in other Oxford dictionaries Definition of Kimberley in the US English dictionary