third dimension

Beyond flat surfaces

The third dimension is depth, which combines with height and width to give objects their spatial presence in the physical world.

While a flat surface like a painting exists in two dimensions, a sculpture or any real object occupies three-dimensional space.

The phrase also appears figuratively to suggest added depth or complexity: The subplot gave the story a third dimension.

In entertainment, films and attractions described as 3-D create the illusion of depth through special projection techniques.

geometry

z-axis

Third Cartesian line

axis · plane · point · solid · cube · sphere · cylinder · cone · prism · polyhedron

3D

depth

Distance below surface

augmented reality · CGI · rendering · animation · immersive · avatar · anaglyph · voxel · polygon · mesh

metaphorical

depth

Distance below surface

profundity · insight · richness · subtlety · deeper meaning · intricacy · perspective · unexplored · revelation

Categories
Opposites
spatial dimensionality

third dimension2D

Two-dimensional

two-dimensional · flatness · flat · depthless · planar

perceptual depth

third dimensionon paper

In theory only

flat surface · flatland · picture plane · flat screen · depthless

Family

third, dimension, thirds, multidimensional, three-dimensional, dimensionless, dimensionality

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G