high definition
Americannoun
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a system for screen display of images that are sharper and more detailed than normal, having many more than the standard number of scanning lines per frame: HD
Most TV shows are available in high definition.
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an audio system that reproduces sound with a high degree of accuracy and clarity: HD
music recordings that use high definition.
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an optical system that produces very sharp images. HD
Other Word Forms
Etymology
Origin of high definition
First recorded in 1980–85
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.
Now, everything is live, up close and in high definition.
From Salon ● Jul. 10, 2026
The legal papers include a snapshot of the box for a high definition television.
From Barron's ● May 11, 2026
Some 17 months later, Manthan was reborn in ultra high definition 4K.
From BBC ● May 17, 2024
By the time they jumped the border and Devin turned pro in Tijuana at 17 years young, all with Money Mayweather’s blessing, you could see him lighting up local competition in high definition.
From Los Angeles Times ● Dec. 3, 2023
Like, full-on surround sound, high definition, 360-degree special effects.
From "Warcross" by Marie Lu
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Get a wordDefinitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
