1. A machine for grinding grain into flour.

2. A building that houses milling machines.

1. A machine that manufactures paper, textiles, or other products by the continuous repetition of some simple process or action.

2. A building that houses machinery for manufacturing processes.

1. An excavation made in the country rock, by a crosscut from the workings on a vein, to obtain waste for filling; it is left without timber so that the roof can fall in and furnish the required rock.

2. A passage connecting a stope or upper level with a lower level intended to be filled with broken ore that can then be drawn out at the bottom as desired for further transportation.