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

At the facility, used vehicles undergo inspections, repairs, detailing, and photography in high-definition, 360-degree camera booths before being listed online. — Chase Jordan, Charlotte Observer, 17 Sep. 2026

The Standard Plan supports high-definition viewing at up to 1920×1080 across multiple devices. — Stackcommerce Team, PC Magazine, 13 Sep. 2026

Excellent lens technology All Oakley sunglasses utilize high-definition optics (HDO) in their lenses. — Bestreviews, Chicago Tribune, 11 Sep. 2026

Sure, the image quality isn't high-definition 4K, but that's part of its charm. — Jamie Spain, Condé Nast Traveler, 5 Sep. 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