Black hole
Black hole noun - Empty space.
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Synonyms for Black hole
Prison and black hole are semantically related. In some cases you can use "Prison" instead a noun phrase "Black hole".
Prison
Prison noun - A place of confinement for persons held in lawful custody.
Mutual synonyms
Both terms in one sentence
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He escaped Black Hole's alternate universe prison by using his farts as a "white hole" counter-attack.
Source: Fartillery - Afterwards, the entire prison gets sucked into a black hole, stranding a number of people.
Source: Immortal Life Is Cheap -
The Alcatraz One of the Vespans' prison planets where Plutonian was performing hard labor uses a graviton well capable of generating half the pull of a black hole to keep its superpowered prisoners in line.
Source: Comic Book / Irredeemable
Cite this Source
Prison and Black hole. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/black_hole/prison
Black hole & Prison. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/black_hole/prison>.
Prison or Black hole. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/black_hole/prison.
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