Word.ws English Dictionary

deep blue sea

deep blue sea noun: the sea, the ocean, the open sea.

Noun

deep blue sea (countable and uncountable, plural deep blue seas)

  1. The sea, the ocean, the open sea.

Forms of deep blue sea

pluraldeep blue seas

Origin of deep blue sea

From deep + blue + sea. Compare Old Norse blá djúp (“deep blue sea”).

Words formed from deep blue sea

  • caught between the devil and the deep blue sea

Questions about deep blue sea

What does deep blue sea mean?
Deep blue sea means the sea, the ocean, the open sea.
What part of speech is deep blue sea?
Deep blue sea is a noun.
What is the plural of deep blue sea?
The plural of deep blue sea is deep blue seas.

Words near deep blue sea in the dictionary

  1. deep auricular arteries
  2. deep auricular artery
  3. deep background
  4. Deep Bay
  5. deep blue
  6. deep blue sea
  7. deep blue seas
  8. deep blues
  9. deep brain stimulation
  10. deep breathing
  11. deep breathings

Source and license

Adapted from Wiktionary: deep blue sea (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: “deep blue sea.” Word.ws, https://word.ws/deep_blue_sea. Based on Wiktionary, CC BY-SA 4.0.