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sinkhole

sinkhole

18 5.7
A hole in the ground made when the surface collapses, often in limestone areas
  • noun
  • /ˈsɪŋkˌhoʊl/
translation icon : sumidero
  • In 1964, two divers entered the depths of the sinkhole and never returned.
  • a deep sinkhole
  • sinkholes, or cenotes

OK, one time the bat wing got stuck in a in a sinkhole.

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Examples

  • Researchers at the University of Texas ready the deep-swimming robot DepthX to explore the world's deepest sinkhole.

    Academic text (2007)
  • Born of the interaction between water and rock, sinkholes appear anywhere rock dissolves easily.

    Blog text (3)
  • I once worked at a plant where a sinkhole formed in the parking lot.

    Blog text (1)
  • The English had a mill here, and it fell into a sinkhole.

  • Look at the size of the sinkhole in comparison to the landmass around it.

    Blog text (18)
  • Now, I don't know if you believe in omens, but a giant sinkhole has just opened up one block away from the White House.

  • When the cavern becomes sufficiently large, the roof collapses and a sinkhole is formed.

    Academic text (1993)
  • The limestone bedrock is easily dissolved over time, creating karst features such as caves, sinkholes, and complex underground drainage systems.

    Academic text (2011)
  • But the land surrounding Chichen ITSAL is pocked with sinkholes, where collapsed bedrock reveals an abundant supply of fresh groundwater.

  • Officials were concerned that further erosion inside the sinkhole could prompt nearby structures to collapse.

Synonyms

pit
vssinkhole
230 3.6

A large hole in the ground used for mining

is specifically a collapsed surface layer hole often linking to passages
depression
vssinkhole
  • Specialized
11 5.3

A low area of land that forms a hollow

denotes a collapsed surface hollow that often communicates with caves
sink
vssinkhole
  • Specialized
3 9.9

A hollow in the ground that forms when the surface collapses

focuses on collapse of the surface layer often in limestone regions
kettle hole
vssinkhole
  • UK
1 8.5

A hollow in the ground that forms when buried ice melts and is often filled with water

is caused by surface collapse in limestone, not by melting ice
swallow hole
vssinkhole
  • UK
9.9

A hole in the ground where water goes underground into caves, often in limestone

focuses on surface layer collapse rather than only opening into passages
natural depression
vssinkhole
4.6

A low hollow in the ground that often holds water

is a collapse-specific hole that often links to underground passages

How Big

chasm
33 6.9
cavern
73 4.3
sinkhole
18 5.7
pit
230 3.6
hollow
44 3.9

Surface Forms

sinkhole singular
sinkholes plural

Morphology

sinkhole = sink + hole (transparent) = sink + hole

The meaning is a straightforward combination of 'sink' (to subside or collapse) and 'hole' — a hole formed by sinking/collapse.

Etymology

Sinkhole is simply the two words sink ('to go down') and hole ('a hollow place') put together. So a sinkhole is a spot where the ground has 'sunk' down into a hole.