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

Bluetooth is not ideal for transferring large files or streaming high-definition video. —Shreyas Sen, The Conversation, 23 Feb. 2026

That includes stocking fresh produce, installing several high-definition security cameras and power washing it regularly. —La Risa R. Lynch, jsonline.com, 19 Feb. 2026

Foveola is the tiny central region responsible for sharp, high-definition vision. —Mrigakshi Dixit, Interesting Engineering, 16 Feb. 2026

Young’s complete catalog and a vast archive of live concerts, studio outtakes, and concert films are available on the Neil Young Archives in super-high-definition sound. —Andy Greene, Rolling Stone, 26 Jan. 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