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(in digital television and cinematography) technology, equipment, or content providing a very sharp image quality, with a horizontal screen resolution of around 4000 pixels.
- ‘if 4K isn't necessary, this could be the TV for you’
- ‘the latest games consoles are now offering gaming in 4K’
- ‘4K TVs have become much more affordable’
Early 21st century from 4 and K, in the sense ‘one thousand’.
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