Abyss
Abyss noun - An immeasurable depth or space.
Usage example: looking down at the dark ocean from the ship's rail, the cruise passenger felt as though he was staring into an abyss
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Synonyms for Abyss
Expanse and abyss are semantically related. In some cases you can use "Expanse" instead a noun "Abyss".
Expanse
How words are described
Cite this Source
Expanse and Abyss. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/abyss/expanse
Abyss & Expanse. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/abyss/expanse>.
Expanse or Abyss. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/abyss/expanse.
Google Ngram Viewer shows how "abyss" and "expanse" have occurred on timeline