Black box
Black box noun - Equipment that records information about the performance of an aircraft during flight.
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Synonyms for Black box
Machine
Machine noun - A device that changes energy into mechanical motion.
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Synonyms for Machine
Black box and machine are semantically related. Sometimes you can use "Black box" instead a noun "Machine".
Mutual synonyms
Both terms in one sentence
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SCP-914 is a more literal Black Box than most; it's an incredibly complex mechanical machine into which you put an object, and it comes out "refined" from the other end.
Source: Black Box -
Finally they catch up to what Whistler figured out almost immediately - since Janek uses a phone message service, he doesn't need an answering machine, so the answering machine on his desk must be the Little Black Box.
Source: Film / Sneakers - Finally one of the group realizes that since Janek uses a phone message service, he doesn't need an answering machine, so the answering machine on his desk must be something else - the Little Black Box.
Source: Rewind, Replay, Repeat
Cite this Source
Machine and Black box. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/black_box/machine
Black box & Machine. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/black_box/machine>.
Machine or Black box. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/black_box/machine.
Google Ngram Viewer shows how "black box" and "machine" have occurred on timeline