high definition
Americannoun
-
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.
-
an audio system that reproduces sound with a high degree of accuracy and clarity: HD
music recordings that use high definition.
-
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.
The legal papers include a snapshot of the box for a high definition television.
From Barron's • May 11, 2026
Attracting millions of likes on social media, the images show the two bodies from unusual angles in glorious high definition.
From BBC • Apr. 5, 2026
Tidied into high definition, they often appear restless.
From Los Angeles Times • Sep. 3, 2025
Frightful extras: The included Blu-ray version of the film ingests all of the digital goodies from the high definition release back in 2009.
From Washington Times • Oct. 26, 2023
This was beyond high definition; it was like watching reality.
From "Found" by Margaret Peterson Haddix
Definitions 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.
