"mining" in the noun sense
1. mining, excavation
the act of extracting ores or coal etc from the earth
2. mining, minelaying
laying explosive mines in concealed places to destroy enemy personnel and equipment
"mining" in the verb sense
get from the earth by excavation
"mine ores and metals"
"The Vietnamese mined Cambodia"
Source: WordNet® (An amazing lexical database of English)
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