IPA: /səˈbaɪdəns/
KK: /səbˈsaɪdəns/
The process of something sinking to a lower level, often referring to the ground or surface, usually caused by factors like underground digging or earthquakes.
The subsidence of the land made the buildings unstable and unsafe.
Subsidence → It is formed from "sub-" (meaning under) and "sidere" (meaning to sit). The word describes the process of something sinking or settling down beneath the surface.
Think of something 'sitting' ('sidere') 'under' ('sub-') the ground — that's why subsidence means the ground sinking or settling.