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Blu-ray

American

[bloo-rey] / 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.

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 • Feb. 23, 2026

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 • Feb. 18, 2026

It received a sales boost last week after being re-released as a super deluxe edition on Blu-ray, cassette and diamond-effect vinyl.

From BBC • Jan. 10, 2025

The Blu-ray and DVD versions of the movie will also be available to purchase on Feb. 4.

From Salon • Dec. 26, 2024

But when the Challengers Blu-ray was announced on May 16, it included no bonus content—it’s not even being released in 4K.

From Slate • Jun. 19, 2024

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