WordNet records no synonym and no antonym for mine. It is the only member of each of its synsets, which is common for technical, taxonomic and single-sense vocabulary — there is no other English word that means the same thing. The broader and narrower terms below are the useful relations in that case.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
excavation in the earth from which ores and minerals are extracted
explosive device that explodes on contact; designed to destroy vehicles or ships or to kill or maim personnel
get from the earth by excavation
“mine ores and metals”
lay mines
“The Vietnamese mined Cambodia”
Synonyms, antonyms and the broader and narrower relations for mine come from Princeton University’s WordNet. Full sources and licences.