Black box
Black box noun - Equipment that records information about the performance of an aircraft during flight.
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Supposedly there was once a job in the British Royal Navy called "Uncorker of Ocean Bottles" as captains sometimes use sea bottles to carry secret messages back to shore or stuff their log books into a empty cask to serve as a "black box" of sorts.
Source: Message in a Bottle -
Also, it was originally announced as both The Orange Box, which includes everything, and "The Black Box", which would have just contained the new stuff (Episode Two, TF2 and Portal), but was cancelled in favor of the ability to give the games you already had to friends.
Source: Compilation Re-release
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Stuff and Black box. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/black_box/stuff
Black box & Stuff. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/black_box/stuff>.
Stuff or Black box. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/black_box/stuff.
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