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Blu-ray

American  
[bloo-rey] / ˈbluˌreɪ /
Trademark.
  1. an optical disk or an optical disk format for the storage of high-definition video and audio, having a much larger capacity than a DVD.

    video games on Blu-ray; Blu-ray movies.


Blu-ray British  

noun

  1. an optical disk used to store digital information such as high-definition video, and able to store more information than a standard DVD

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Blu-ray

Blu-, respelling of blue (from the blue-violet laser used to read the disk) + (optical) ray

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In a matter of minutes, the 24-year-olds found themselves in the thick of its “Star Wars” DVD and Blu-ray collection, reminiscing about the special features they enjoyed as kids.

From Los Angeles Times

In turn, boutique Blu-ray companies, like the Criterion Collection, are similarly on the rise.

From Los Angeles Times

“This is most clear in 4K UHD Blu-ray, which delivers a premium in-home viewing experience,” Smith said, adding that “U.S. viewers spent 12 percent more buying titles on 4K UHD in 2025 than they did in 2024.”

From Los Angeles Times

Subsequently out of print, they’re before us once more, now in high-quality transfers of differing resolutions, as part of Eclipse’s revival on Blu-ray.

From The Wall Street Journal

Lightyear Entertainment has prepared a remastered version of the film being shown in venues throughout the country, including on Feb. 13 as part of Film at Lincoln Center’s series “Looking for Ms. Keaton,” and will be released on Blu-ray on Feb. 17.

From The Wall Street Journal