third dimension

noun

1

: thickness, depth

also : a dimension that adds the effect of solidity to a two-dimensional system

2

: a quality that confers reality or lifelikeness

night sounds that stick in the mind and give a third dimension to the memory

—Adie Suehsdorf

third-dimensional

ˈthərd- də-ˈmen(t)-sh(ə-)nəl 

adjective

Examples of third dimension in a Sentence

Recent Examples on the Web

The third dimension, Exit & Fund Performance, was assessed based on the volume and efficiency of successful exits, captured through the exit-to-investment ratio and benchmarked fund returns, focusing on the quality and consistency of each firm’s track record. —Time Staff, Time, 19 Aug. 2025

Real sound nerds might be familiar with the Dolby Atmos method, which adds the third dimension of height to your sound experience. —Julia Harrison, Architectural Digest, 14 Aug. 2025

Rethinking sandwich feedback The third dimension: a supportive work environment with the right resources, information, and space for reflection. —Esmt Berlin, Forbes.com, 22 May 2025

Goode later moved fully into the third dimension, creating a series of sculptural pieces that resemble stairs that can be set in corners or against walls. —Alex Greenberger, ARTnews.com, 26 Mar. 2025

Word History

First Known Use

1846, in the meaning defined at sense 1

Rhymes for third dimension

• apprehension
• comprehension
• condescension
• hypertension
• hypotension
• reinvention
• reprehension
• resuspension
• attention
• contention
• convention
• declension