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

This is why getting a high-definition picture of a leader — through rigorous assessment, psychometric profiling, structured reference gathering, and behavioural history — is not an optional extra in the selection process. — Tomas Chamorro-Premuzic, Forbes.com, 19 June 2026

Well, just one petabyte is equal to roughly 250 million high resolution photos or the storage capacity of 250,000 smartphones or 13 years' worth of continuous high-definition movies. — David Wade, CBS News, 18 June 2026

The world followed the exploits of NASA's Artemis 2 moon mission in near real-time thanks to a high-tech laser link between the astronauts and Earth that enabled high-definition streaming video and images. — Keith Cooper, Space.com, 15 June 2026

This major drop completely eliminates the luxury premium typically required for high-definition streaming architecture, giving audiophiles and design enthusiasts a chance to easily bring home advanced multi-room Wi-Fi audio. — Juhi Wadia, PC Magazine, 10 June 2026

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