thicken

verb

thick·​en ˈthi-kən How to pronounce thicken (audio)
thickened; thickening ˈthi-kə-niŋ How to pronounce thicken (audio)
ˈthik-

intransitive verb

1
a
: to become dense
the mist thickened
b
: to become concentrated in numbers, mass, or frequency
2
: to grow blurred or obscure
3
: to grow broader or bulkier
4
: to grow complicated or keen
the plot thickens

transitive verb

1
a
: to make thick, dense, or viscous in consistency
thicken gravy with flour
b
: to make close or compact
2
: to increase the depth or diameter of
3
: to make inarticulate : blur
alcohol thickened his speech
thickener noun

Examples of thicken in a Sentence

I thickened the gravy with flour. When the mixture thickens, add the remaining ingredients. The fog thickened when night fell.
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.
Flour: Flour helps thicken and bind the pineapple and sugar mixture at the bottom of the dish. Symiah Dorsey, Southern Living, 28 Mar. 2025 Moisturizers and serums infused with niacinamide can help thicken the skin barrier, decrease redness and soften fine lines and wrinkles, says Dr. Joshua Tournas, a dermatologist with Banner Health. Caroline C. Boyle, USA Today, 27 Mar. 2025 Gradually add the milk while stirring and cook until thickened, 3 to 5 minutes. 10. Philip Potempa, Chicago Tribune, 21 Mar. 2025 The sauce will thicken and darken in color and the flavors will intensify. Angelica Stabile, Fox News, 3 Mar. 2025 See All Example Sentences for thicken

Word History

First Known Use

14th century, in the meaning defined at intransitive sense 1a

Time Traveler
The first known use of thicken was in the 14th century

Browse Nearby Words

Cite this Entry

“Thicken.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thicken. Accessed 13 Apr. 2025.

Kids Definition

thicken

verb
thick·​en ˈthik-ən How to pronounce thicken (audio)
thickened; thickening -(ə-)niŋ How to pronounce thicken (audio)
1
: to make or become thick, dense, or viscous
thicken gravy with flour
2
: to become complicated
the plot thickens
thickener noun

More from Merriam-Webster on thicken

Last Updated: - Updated example sentences
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