high-definition

adjective

high-def·​i·​ni·​tion ˈhī-ˌde-fə-ˈni-shən How to pronounce high-definition (audio)
: being or relating to an often digital television system that has either 720 or 1080 scan lines per frame and a wide-screen format
high definition noun
a program broadcast in high definition

Examples of high-definition in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There’s 56 hours of high-definition footage and 1,200 pages of transcripts, just to give you an idea of the project. Lisa Deaderick, San Diego Union-Tribune, 12 July 2025 Under those bright lights, with high-definition cameras capturing every moment, with the physical demands of athletic competition, makeup needs to perform. Essence, 10 July 2025 Key features: Premium quality build, high-definition imagery, quiet operation, option rotation available, three easy-to-operate buttons, sleep timer and expansion disks available. Alexander Cox, Space.com, 8 July 2025 The Blink Video Doorbell gives you a full high-definition view, two-year battery life, and smart motion detection — all for just $34.99 right now, thanks to Prime Day. Juhi Wadia, PC Magazine, 4 July 2025 See All Example Sentences for high-definition

Word History

First Known Use

1981, in the meaning defined above

Time Traveler
The first known use of high-definition was in 1981

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Cite this Entry

“High-definition.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/high-definition. Accessed 18 Jul. 2025.

Kids Definition

high-definition

adjective
: relating to or being a television with a more detailed and sharper picture than usual
Last Updated: - Updated example sentences
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