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

There’s 56 hours of high-definition footage and 1,200 pages of transcripts, just to give you an idea of the project. —Lisa Deaderick, San Diego Union-Tribune, 12 July 2025

Under those bright lights, with high-definition cameras capturing every moment, with the physical demands of athletic competition, makeup needs to perform. —Essence, 10 July 2025

Key features: Premium quality build, high-definition imagery, quiet operation, option rotation available, three easy-to-operate buttons, sleep timer and expansion disks available. —Alexander Cox, Space.com, 8 July 2025

The Blink Video Doorbell gives you a full high-definition view, two-year battery life, and smart motion detection — all for just $34.99 right now, thanks to Prime Day. —Juhi Wadia, PC Magazine, 4 July 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