ground·​man | \ˈgrau̇n(d)ˌman, -mən\
plural groundmen

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

4 : an electrician who attends to grounding connections

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obstinately defiant of authority

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