Word.ws English Dictionary

blue hole

blue hole noun: a submarine cave or sinkhole, a roughly circular, steep-walled depression that is typically anoxic below a certain depth.

Noun

blue hole (plural blue holes)

  1. A submarine cave or sinkhole, a roughly circular, steep-walled depression that is typically anoxic below a certain depth.

Forms of blue hole

pluralblue holes

Questions about blue hole

What does blue hole mean?
Blue hole means a submarine cave or sinkhole, a roughly circular, steep-walled depression that is typically anoxic below a certain depth.
What part of speech is blue hole?
Blue hole is a noun.
What is the plural of blue hole?
The plural of blue hole is blue holes.

Words near blue hole in the dictionary

  1. blue hens
  2. blue heron
  3. blue herons
  4. Blue Hill
  5. Blue Hill Falls
  6. blue hole
  7. blue holes
  8. blue hook star
  9. blue hook stars
  10. blue hour
  11. blue hours

Source and license

Adapted from Wiktionary: blue hole (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “blue hole.” Word.ws, https://word.ws/blue_hole. Based on Wiktionary, CC BY-SA 4.0.