| skos:altLabel | - subsidence
- cavity
- collapse
- sink
- collapsed
- caved in
- sinks
- sinkhole
- sinkholes
- tomos
- solution holes
- Doline
- Doline (geology)
- Sinkhole lakes
- Sinkhole#Crown hole
- Sinkhole#Piping_pseudokarst
- Solution holes
- Swallet
- Tiankeng
- collapse structure
- collapsed caves
- crater-like depressions
- dolina
- dolinas
- doline
- dolines
- dolines or sinkholes
- shake hole
- shakeholes
- sink hole
- sinkholes, swallets
- solution hollows
- solution sinkhole
- swallet
- swallet holes
- swallets
- swallow hole
- swallow holes
- swallow-hole
- swallowholes
- tiankeng
- water sinks
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