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.

"We have fully processed the specimen and, based on the newly acquired information, created a 3D reconstruction that is available online," says Daniel Tröger from the University of Jena.

From Science Daily • Jun. 4, 2026

"We have been able to produce really high-resolution 3D maps, which, from a remote sensing perspective, is what's unique and novel about it. Grand Canyon's caves have never been mapped in 3D like this."

From Science Daily • Jun. 2, 2026

Before that, in 2022, Parsons shared a short film to his YouTube channel that he had made with 3D software Blender.

From Barron's • May 28, 2026

"I run a lot of the 3D printing and the manufacturing side rather than the design side."

From BBC • May 27, 2026

Arthur puts on his 3D glasses and grabs the blaster with a tight grip.

From "What If It's Us" by Becky Albertalli and Adam Silvera

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