Excavation (noun)

1. The action or process of excavating or the state of being excavated.
2. An excavation, especially one carried out to reveal or extract archaeological or palaeontological finds.
3. A hole or cavity created by excavation.

Origin:

Late 16th century: from latin excavatio(n-), from excavare "hollow out".

Examples:

1. The excavation revealed an ancient city buried beneath the sand.
2. The excavation was carried out by a team of archaeologists.
3. The excavation required the use of heavy machinery.
4. The excavation provided valuable insights into the history of the region.
5. The excavation uncovered a wealth of artifacts and fossils.