black hole

noun

1

: a celestial object that has a gravitational field so strong that light cannot escape it and that is believed to be created especially in the collapse of a very massive star

2

: something resembling a black hole: such as

a

: something that consumes a resource continually

a financial black hole

b

: an empty space : void

… the archives of the past few years are a black hole.

—David Herman

c

: a dark and seemingly inescapable state or situation

the black hole of depression

Synonyms of black hole

• emptiness
• vacancy
• void
• blank

Examples of black hole in a Sentence

discovered that there was a black hole in the library's collection with regard to her topic

Recent Examples on the Web

The prevalence of LRDs in the early universe would align with the emergence of supermassive black holes, each weighing millions to billions of suns apiece, which astronomers spy at the hearts of large galaxies. — Lee Billings, Scientific American, 12 Aug. 2026

The object looks like a star the size of our solar system, but produces 100 billion times more energy than any star — a mighty blast of power closer to what is produced by a black hole. — CBS News, 12 Aug. 2026

Fortunately, Green’s film exists — and was not thrown into a little black hole by a bunch of accountants, never to be seen again — and can surely help cure any of the pain its backstory still inflicts on movie fans and Tunes geeks. — Kate Erbland, IndieWire, 12 Aug. 2026

The consensus seems to be that these bizarre objects, which were first discovered in 2022, are growing supermassive black holes entombed within huge clouds of gas that have spectrums similar to cool, red stars, such as red giants. — Keith Cooper, Space.com, 12 Aug. 2026

Word History

First Known Use

1963, in the meaning defined at sense 1

Rhymes for black hole

• bankroll
• bedroll
• borehole
• cajole
• catchpole
• charcoal
• condole
• control
• dipole
• downhole
• enroll
• extol

Kids Definition

black hole

noun

: an invisible region believed to exist in space having a very strong gravitational field and thought to be caused by the collapse of a star