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 Eight-channel 4K and high-definition video (color, sound; 14:49 min.), MDF, vinyl, seating, scrims, props, and window gel, dimensions variable. Jillian Steinhauer, Vulture, 24 Feb. 2024 Perhaps the most egregious example of mishandling secret documents was when Trump became fascinated by a high-definition photo taken by a U.S. satellite of a missile accident in Iran. Reader Commentary, Baltimore Sun, 1 May 2024 The show features lighting by Jennifer Edwards and sound by Jordan Gray, but much of its scenic design is courtesy of Moonlight’s new high-definition video wall, which is used to dazzling effect in this show, with projections designed by Blake McCarty. Pam Kragen, San Diego Union-Tribune, 14 May 2024 While air battles were executed digitally, the production used four real B-17s, and full-scale mock-ups of cockpits and bomber bays that were suspended 50 feet in the air on a gimbal and surrounded by high-definition screens. Marco Della Cava, USA TODAY, 25 Jan. 2024 As well as being reliant on large numbers of sensors and high-definition mapping, these companies take a modular approach to self-driving, breaking up the problem into multiple smaller tasks like object detection, localization, and motion planning, each served by their own algorithms. IEEE Spectrum, 24 Apr. 2024 Unlike today, when seemingly every square inch of the Central Business District is covered by cameras producing high-quality, high-definition video even in low light, there was no footage available from local businesses back then. Detroit Free Press, 22 Apr. 2024 For young photography or video aficionados, the D20 is equipped with a high-definition Wi-Fi camera that gives them first-person view (FPV) of what the drone sees via the Deerc app on their smartphones. Maya Polton, Parents, 12 Apr. 2024 Customers can sit in the sports lounge under one of the 17 massive high-definition television screens. Brianna Taylor, Sacramento Bee, 27 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'high-definition.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1981, in the meaning defined above

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

Dictionary Entries Near high-definition

Cite this Entry

“High-definition.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/high-definition. Accessed 18 Jun. 2024.

Kids Definition


: relating to or being a television with a more detailed and sharper picture than usual
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