thick·​ness | \ ˈthik-nəs How to pronounce thickness (audio) \

Definition of thickness

1 : the smallest of three dimensions length, width, and thickness
2 : the quality or state of being thick
3a : viscous consistency boiled to the thickness of honey
b : the condition of being smoky, foul, or foggy
4 : the thick part of something
7 : layer, ply, sheet a single thickness of canvas

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Examples of thickness in a Sentence

The plank measures two inches in thickness. the length, circumference, and thickness of the log Plywood is available in various thicknesses. Cooking time will vary depending on the thickness of the steak. I added flour to increase the gravy's thickness. I was surprised by the thickness of his accent.
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Recent Examples on the Web The brass pad adopts the thickness design, guaranteeing safety. Chris Hachey, BGR, 9 June 2021 Hybrid mattresses increase in price as size and thickness increase. Anthony Marcusa,, 11 Mar. 2021 Apply enough pressure to flatten the chicken to 1⁄4 inch thickness edge to edge. Joanne Rosa, ABC News, 5 Mar. 2021 Visit Cook County also urges skaters to always check ice thickness — which should be at least 4 inches for activities on foot — and bring safety gear like ice picks, rope and a dry change of clothes. Katie Galioto, Star Tribune, 15 Dec. 2020 Cook, turning every 5 minutes, until the flesh is tender when pierced with a skewer, 20 to 30 minutes or longer, depending on the potatoes’ thickness. Washington Post, 4 July 2021 The thickness or type of materials used can change depending on how long the temporary pacemaker needs to last. Kevin Lin, STAT, 3 July 2021 As the number grows, so does a pipe’s wall thickness and ability to withstand internal pressure. Joe Kohl-riggs, Popular Mechanics, 26 June 2021 In women, this might look like a widening part with normal hair thickness at the back of the head. Erin Nicole Celletti, Allure, 24 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thickness.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of thickness

before the 12th century, in the meaning defined at sense 1

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Time Traveler for thickness

Time Traveler

The first known use of thickness was before the 12th century

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Dictionary Entries Near thickness



thickness gage

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Statistics for thickness

Last Updated

20 Jul 2021

Cite this Entry

“Thickness.” Dictionary, Merriam-Webster, Accessed 30 Jul. 2021.

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More Definitions for thickness



English Language Learners Definition of thickness

: the distance between the top and bottom or front and back surfaces of something : a measurement of how thick something is
: the quality of being thick
: a layer or sheet of some material


thick·​ness | \ ˈthik-nəs How to pronounce thickness (audio) \

Kids Definition of thickness

1 : the quality or state of being thick
2 : the smallest of three dimensions length, width, and thickness

More from Merriam-Webster on thickness

Nglish: Translation of thickness for Spanish Speakers

Britannica English: Translation of thickness for Arabic Speakers


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