whisker

noun

whis·​ker ˈ(h)wi-skər 

1

a

: a hair of the beard

b whiskers plural

(1)

archaic : mustache

(2)

: the part of the beard growing on the sides of the face or on the chin

c

: hairbreadth

lost the race by a whisker

2

: one of the long projecting hairs or bristles growing near the mouth of an animal (such as a cat or bird)

3

: an outrigger extending on each side of the bowsprit to spread the jib and flying jib guys

—usually used in plural

4

a

: a shred or filament resembling a whisker

b

: a thin hairlike crystal (as of sapphire or copper) of exceptional mechanical strength used especially to reinforce composite structural material

whiskered

ˈ(h)wi-skərd 

adjective

whiskery

ˈ(h)wi-sk(ə-)rē 

adjective

Examples of whisker in a Sentence

He won the race by a whisker.

Recent Examples on the Web

In turbulent political times, stability comes with four legs, whiskers and a fondness for napping. —Jill Lawless, Chicago Tribune, 15 Feb. 2026

In a paper published in Science, researchers at the Max Planck Institute for Intelligent Systems, the Humboldt University of Berlin, and the University of Stuttgart have discovered that the secret to the elephant’s amazing sense of touch is in its unusual whiskers. —Evan Ackerman, IEEE Spectrum, 13 Feb. 2026

Raindrops on roses and whiskers on kittens. —Tyler Estep, AJC.com, 13 Feb. 2026

They’re designed with a similar wide-leg silhouette, along with whisker creases at the thighs and raw hems. —Emily Weaver, PEOPLE, 30 Jan. 2026

Word History

Etymology

singular of whiskers mustache, from whisk entry 2

First Known Use

circa 1600, in the meaning defined at sense 1a

Phrases Containing whisker

• within a whisker of

Rhymes for whisker

• brisker

Kids Definition

whisker

noun

whis·​ker ˈhwis-kər 

ˈwis-

1

a

: a hair of the beard

b

plural : the part of the beard growing on the sides of the face or on the chin

2

: one of the long hairs or bristles growing near the mouth of an animal (as a cat or mouse)

whiskered

-kərd 

adjective