Definition of "holing" []

• Present participle of hole. (verb)
• Undercutting in a bed of coal in order to bring down the upper mass (noun)

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• "Regarding the position of the nails, it goes without saying that the first consideration when 'holing' the shoe should be to punch the holes opposite to sound horn."
• "So I was able to do all the parts that involved holing up in carrels and filling out innumerable index cards in Austin."
• "That bad times pass, that keeping going when things look bleak is better than holing up, and that a disaster is not always the end of a project."