black out
To censor or cover up by writing over with black ink.
Meaning adapted from Wiktionary, available under CC BY-SA 4.0.
“Please black out your personal information on the form.”
“The government decided to black out several paragraphs in the report before releasing it to the public.”
“To protect the identity of the confidential informant, the legal team chose to black out all identifying details within the released documents.”
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black babies
Third-world charities, the missions.
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black day
A day of great disaster, misfortune or unhappiness.
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black gold
Raw petroleum; crude oil.
- 04
black hat
A villain in a story, especially in a Western (a film or other work of the Western genre).
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black mark
Something that negatively affects someone's reputation.
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black market
Trade that is in violation of restrictions, rationing, or price controls.
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black over Bill's mother's
Describing rain-bearing dark clouds on the horizon.
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black oxide
Any of several coatings for steels or copper; some are oxides (mainly iron(II,III) oxide), some are nitrites or nitrates, and some are selenides; all are black; the main purposes are the antireflective and cosmetic effects; the anticorrosion effects are small.
Last updated August 10, 2026