thickness

noun

thick·​ness ˈthik-nəs How to pronounce thickness (audio)
Synonyms of thicknessnext
1
: the smallest of three dimensions
length, width, and thickness
2
: the quality or state of being thick
3
a
: viscous consistency
boiled to the thickness of honey
b
: the condition of being smoky, foul, or foggy
4
: the thick part of something
5
: concentration, density
6
: stupidity, dullness
7
: layer, ply, sheet
a single thickness of canvas

Synonyms of thickness

Relevance
See All Synonyms & Antonyms in Thesaurus

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.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Go back over the line one more time at the end with firmer pressure to create more thickness or make the line darker if desired. — Patricia Shannon, Southern Living, 13 Aug. 2026 By reducing the thickness of a key crystal dimension, the team limited internal stress and cracking that normally develops as sodium ions repeatedly enter and leave the material. — Neetika Walter, Interesting Engineering, 12 Aug. 2026 These are definitely not boring smash burgers the thickness of a nickel. — John Metcalfe, Mercury News, 11 Aug. 2026 When rolling, it is recommended to run the pasta through a pasta machine at the thickest setting first, then fold the pasta strip over itself into 3 thicknesses and repeat, before moving down a setting. — Olivia Wakim, AJC.com, 9 Aug. 2026 See All Example Sentences for thickness

Word History

First Known Use

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

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

Rhymes for thickness

See All Rhymes for thickness

Browse Nearby Words

thickneck
thickness
thickness gage
See all Nearby Words

Cite this Entry

“Thickness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thickness. Accessed 15 Aug. 2026.

Copy Citation

Kids Definition

thickness

noun
thick·​ness ˈthik-nəs How to pronounce thickness (audio)
1
: the quality or state of being thick
2
: the smallest of three dimensions
length, width, and thickness
3
: the thick part of something
4
: layer entry 1 sense 2
a single thickness of canvas

More from Merriam-Webster on thickness

Nglish: Translation of thickness for Spanish Speakers

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

7 Pairs of Commonly Confused Words

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?
See More

Popular in Wordplay

See More

Words from the 'Odyssey'

The Longest Long Words List

It's a Scorcher! Words for the Summer Heat

The Words of the Week - Aug. 14

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Words from the 'Odyssey'

The Longest Long Words List
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
image of a green cube out of place in a lineup of red spheres
Odd Word Out: Synonyms Vol. 2 Quiz Figure out which word isn't like the others.
See All