Black hole
Black hole noun - Empty space.
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Synonyms for Black hole
Pit and black hole are semantically related. In some cases you can use "Pit" instead a noun phrase "Black hole".
Pit
Pit noun - A sunken area forming a separate space.
Black hole and pit are semantically related. Sometimes you can use "Black hole" instead a noun "Pit".
Both terms in one sentence
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In the episode "The Impossible Planet", the Doctor, when confronted with a large pit, in the centre of a planet referred to as Hell, which is in orbit around a black hole, with the Devil attacking, discusses with a scientist why they have an urge to jump down the pit, and how the feeling is.
Source: Forbidden Fruit - In the Doctor Who two-parter "The Impossible Planet"/"The Satan Pit", the Monster of the Week—heavily implied to be Satan—is chained far, far underground on a planet orbiting a black hole.
Source: Benevolent Precursors -
A black hole is the equivalent of an infinitely deep well -a bottomless pit-.
Source: Bottomless Pits
Cite this Source
Pit and Black hole. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/black_hole/pit
Black hole & Pit. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/black_hole/pit>.
Pit or Black hole. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/black_hole/pit.
Google Ngram Viewer shows how "black hole" and "pit" have occurred on timeline