5 letters · 7 points in Scrabble
noun excavation in the earth from which ores and minerals are extracted
noun explosive device that explodes on contact; designed to destroy vehicles or ships or to kill or maim personnel
verb get from the earth by excavation
originVariation of mine, formed with the final -s of the other possessive pronouns: ours, yours, theirs, etc.
Etymology from Wiktionary, CC BY-SA 3.0