thickness

noun

thick·​ness ˈthik-nəs 

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

• consistence
• consistency
• density
• viscidity
• viscosity

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

The exact cook time will depend on your cut of chicken and its thickness, but when its internal temperature registers 165°F with an instant-read thermometer, it’s done. —Sheela Prakash, Bon Appétit, 19 June 2024

The outcome depends on myriad variables: the force and angle and height of the flip; the weight, diameter, thickness and distribution of mass of the coin; air resistance; gravity; the hardness of the landing surface; and so on. —Quanta Magazine, 12 June 2024

Staying above it all Precision's device, called the Layer 7 Cortical Interface, uses electrode arrays on a yellow film, described as one-fifth the thickness of a human hair, which contains 1,024 electrodes ranging in diameter from 50 to 380 microns. —Beth Mole, Ars Technica, 7 June 2024

Underlying Causes of Hair Loss Hair loss treatments can help improve thickness and length with regular use. —Jessie Quinn, Peoplemag, 6 June 2024

Word History

First Known Use

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

Kids Definition

thickness

noun

thick·​ness ˈthik-nəs 

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