3D

American

[three-dee] / ˈθriˈdi /

Or 3-D

adjective

of, relating to, or representing something in three dimensions; three-dimensional.

3D movies.

noun

a three-dimensional form or appearance.

My dreams are always in 3D.

Etymology

Origin of 3D

An Americanism dating back to 1950–55

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Take “Avatar,” which seduced audiences with its immersive 3D format so intensely that some viewers reported experiencing depression returning to the real world.

From Salon ● Jul. 22, 2026

And fans can follow the match live in 3D on BBC Sport's popular World Cup 3D experience feature.

From BBC ● Jul. 3, 2026

Advances in 3D printing have made the conversion devices widely available and cheap to produce.

From Los Angeles Times ● Jul. 1, 2026

The team believes it could eventually be used in solar-powered photocatalysis, indoor air purification systems, and low-intensity 3D printing technologies.

From Science Daily ● Jun. 26, 2026

The 3D hologram instantly projects in front of me.

From "The Last Cuentista" by Donna Barba Higuera

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023