IPA: /ˌɛkskəˈveɪʃən/
KK: /ɛkskəˈveɪʃən/
A process of digging or removing earth to create a hole or cavity in the ground.
The excavation revealed ancient artifacts buried beneath the soil.
Excavation → It is formed from "ex-" (meaning out of) and "cavare" (meaning to hollow or dig). The word "excavation" refers to the process of digging out or hollowing out a space.
Think of digging "out of" something ('ex-') to create a hollow space ('cavare') — that's what excavation means.