n. 凹点；凸面；维修区（pit的复数）

n a sizeable hole (usually in the ground)

n a concavity in a surface (especially an anatomical depression)

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

n (Christianity) the abode of Satan and the forces of evil; where sinners suffer eternal punishment

n an enclosure in which animals are made to fight

n (commodity exchange) the part of the floor of a commodity exchange where trading in a particular commodity is carried on

n (auto racing) an area at the side of a racetrack where the race cars are serviced and refueled

n a trap in the form of a concealed hole

n a surface excavation for extracting stone or slate

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

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

v set into opposition or rivalry

v mark with a scar

v remove the pits from