high-definition

adjective

high-def·​i·​ni·​tion ˈhī-ˌde-fə-ˈni-shən 

: 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

During this period, the telescope will zip its view across the sky in a carefully choreographed dance that will ultimately produce the best high-definition movie of the heavens that humanity has ever conceived. —Meghan Bartels, Scientific American, 1 July 2025

But a new high-definition drone video may help Everest fanatics who will never set foot on the peak better understand the nothern route. —Frederick Dreier, Outside Online, 30 June 2025

The package includes a 92-page interview photobook with behind-the-scenes content, accessible through a digital card format that unlocks high-definition VOD content on the Weverse platform. —Naman Ramachandran, Variety, 30 June 2025

Big, high-definition displays are becoming more common. —Jon Kirchner, Forbes.com, 27 June 2025

Word History

First Known Use

1981, in the meaning defined above

Rhymes for high-definition

• academician
• cycloaddition
• decomposition
• diagnostician
• disinhibition
• indisposition
• interposition
• juxtaposition
• mathematician
• metacognition
• metaphysician
• neurotransmission

Kids Definition

high-definition

adjective

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