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cornerstone [cornerstones]▼(base stone)noun[UK: ˈkɔː.nə.stəʊn] [US: ˈkɔːr.nərˌstoʊn]
cornerstone [cornerstones]▼(that which is prominent, fundamental, noteworthy, or central)noun[UK: ˈkɔː.nə.stəʊn] [US: ˈkɔːr.nərˌstoʊn]
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