Density
Density noun - The degree to which a fluid can resist flowing.
Usage example: the simple fact that molasses has greater density than room-temperature water
Thickness is a synonym for density in thick topic. In some cases you can use "Thickness" instead a noun "Density", when it comes to topics like matter, bulk, solidity, tightness. popular alternative
Thickness
Thickness noun - The degree to which a fluid can resist flowing.
Usage example: beat the eggs and sugar until the mixture has the thickness of heavy cream
Density is a synonym for thickness in thick topic. You can use "Density" instead a noun "Thickness", if it concerns topics such as matter, denseness, as a quality. popular alternative
Mutual synonyms
Related pairs
How words are described
Both words in one sentence
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Not as scary, however, once you realize that its density (even if it had the relative thickness of a razor blade) would literally be less than that of air.
Source: Web Original / Orion's Arm - It can change its length, thickness, and density according to the will of its wielder, meaning that it can quickly shift from whip to spear to staff to sword and back again - and in any of its rigid states, it's durable enough to block a lightsaber.
Source: Morph Weapon
Cite this Source
Thickness and Density. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/density/thickness
Density & Thickness. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/density/thickness>.
Thickness or Density. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/density/thickness.
Google Ngram Viewer shows how "density" and "thickness" have occurred on timeline