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

SpaceX frequently utilizes its high-data capabilities to stream high-definition live views of its Falcon 9 and Starship rocket launches from orbit. — Josh Dinner, Space.com, 21 July 2026

When activated, the cameras collect high-definition, wide-angle video that shows what's in front of the officer, often at a 120-degree field of vision. — Stephen J. Beard, USA Today, 15 July 2026

Logitech Wireless Gaming Headset Deal The Logitech G321 gaming headset brings crystal-clear high-definition audio to competitive chat channels, with 40mm drivers delivering a 48 kHz/16-bit sound signature. — Juhi Wadia, PC Magazine, 7 July 2026

The upgrades included a high-definition video board, ribbon boards and boosts to audio and lighting. — Blair Kerkhoff, Kansas City Star, 3 July 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