1. the action of excavating something, especially an archaeological site: "the methods of excavation have to be extremely rigorous"Similarunearthingdigging upuncoveringrevealingdisintermentexhumationdiggingdigging outhollowing outscooping outgougingboringchannelingsinkingquarryingminingholehollowcavitypitcratercuttingtrenchtrougharchaeological site