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.

There is an all-new way to watch matches via the BBC Sport website - with the Fifa World Cup 3D experience.

From BBC • Jun. 2, 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

The researchers are now preparing to transfer the technology to an industrial semiconductor foundry, an important step toward bringing true monolithic 3D silicon chips into commercial production.

From Science Daily • May 30, 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

Sorry to hear about the trauma of the 3D ultrasound, from which you so kindly tried to spare me the details.

From "Simon vs. the Homo Sapiens Agenda" by Becky Albertalli

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