pit

1.a sizeable hole (usually in the ground);

they dug a pit to bury the body

2.a concavity in a surface (especially an anatomical depression)

3.the hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed;

you should remove the stones from prunes before cooking

4.a trap in the form of a concealed hole

5.a surface excavation for extracting stone or slate;

a British term for `quarry' is `stone pit'

6.lowered area in front of a stage where an orchestra accompanies the performers

7.a workplace consisting of a coal mine plus all the buildings and equipment connected with it

1.set into opposition or rivalry;

let them match their best athletes against ours

2.mark with a scar;

The skin disease scarred his face permanently

3.remove the pits from;

pit plums and cherries

1.The pit bosses are foremen.

采矿作业班的头儿就是领班。