say it: MAHY-ning
mining is a noun meaning "the act of extracting ores or coal etc from the earth". It carries 2 recorded senses.
the act of extracting ores or coal etc from the earth
laying explosive mines in concealed places to destroy enemy personnel and equipment
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for mining come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.