Blu-ray

American

[bloo-ray] / ˈbluˌreɪ /

Trademark.

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

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.

See Examples For:

Blu-ray

That said, it has never been on Blu-ray and is available to stream from only a few scattered sites.

From Los Angeles Times ● Aug. 6, 2026

For decades to come, high school kids — probably even a few high school teachers — are just going to pop in his Blu-ray and call it a day.

From Los Angeles Times ● Aug. 4, 2026

After Sony reported those numbers, rumors began circulating that the upcoming PS6 will be totally disc-free, making the Blu-ray reader a separately sold, optional piece of hardware.

From Slate ● Jul. 7, 2026

A new Blu-ray set presents immaculately restored versions of 20 cartoons from Fleischer Studios and its namesake siblings, Dave and Max Fleischer.

From The Wall Street Journal ● May 27, 2026

The Criterion Collection has just boxed them for its revived Eclipse line on Blu-ray.

From The Wall Street Journal ● May 4, 2026

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023