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.

Featuring Betty Boop, Popeye and even Superman, the shorts gathered on a new Blu-ray set showcase the inventiveness of an early animation studio very different from Disney.

From The Wall Street Journal • May 27, 2026

Various deluxe editions also come with bootleg recordings from a 1975 concert, concert films on Blu-ray, a hardcover book with never-seen photographs, a comic-book tour poster and more.

From The Wall Street Journal • Dec. 7, 2025

The film will then be rereleased on Blu-ray on Oct.

From Los Angeles Times • Sep. 25, 2025

Today, only the updated versions are available on official streaming platforms and Blu-ray, making screenings of the film's original cut rare.

From BBC • Apr. 10, 2025

And in this year’s holiday spirit, Bavarian State Opera in Munich has released on DVD and Blu-ray its ecstatic recent production of “Fledermaus” directed by Barrie Kosky and conducted with extraordinary dynamism by Vladimir Jurowski.

From Los Angeles Times • Dec. 31, 2024

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