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black hole
- a celestial object or dark region in space, perhaps formed by the collapse of a large star, with such a great mass that its gravitational field will not let even light escape
- an emptiness or void
- anything thought of as endlessly devouring resources, funds, etc.
- a small dungeon at Calcutta: it was once believed that over 100 Europeans were confined there one night in 1756 by their Indian captors and died from heat and lack of air
- any dungeon
See black hole in American Heritage Dictionary 4
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