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

The high-definition simulcasts, which reliably draw audiences, will conclude the 2025–26 season with Gabriela Lena Frank’s El Último Sueño de Frida y Diego on May 30. —Jill Goldsmith, Deadline, 3 May 2026

It’s prized for sculpting a high-definition lip that holds up under the harshest red-carpet lighting. —Micaela English, Glamour, 30 Apr. 2026

These opportunities exist because of the rapid advances in high-definition equipment that have made sports broadcasting an immersive, and sometimes interactive, experience through the combination of multiscreen options. —Encyclopedia Britannica, 27 Apr. 2026

Geely has packed the prototype with an extensive sensor suite, built around 43 perception components that include LiDAR and high-definition cameras. —Bojan Stojkovski, Interesting Engineering, 25 Apr. 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