Definition of groundman
1a : a strip-mine worker who moves dirt and coal within reach of power shovels b : a mine worker who deepens haulageways by digging out the bottom and lowering tracks
2 : a member of a work crew who performs the tasks that can be done on or from the ground: such as a : one who digs holes and raises poles for electric power or telephone lines and lifts equipment and tools to linemen b : one who assists with the erection of oil-well drilling rigs or power lines, the driving of piles, or the construction or wrecking of buildings
3 : groundkeeper 1
4 : an electrician who attends to grounding connections
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