mustache

noun

mus·​tache ˈmə-ˌstash  (ˌ)mə-ˈstash 

variants or less commonly moustache

1

: the hair growing on the human upper lip

especially : such hair grown and often trimmed in a particular style

his long mustache combed and waxed

—Henry Petroski

2

: hair or bristles about the mouth of a mammal

mustached adjective

or less commonly moustached

ˈmə-ˌstasht 

(ˌ)mə-ˈstasht

Examples of mustache in a Sentence

He used a small pair of scissors to trim his mustache.

He decided to grow a mustache.

The actor was wearing a false mustache.

Recent Examples on the Web

House Minority Leader Hakeem Jeffries is also shown in the video wearing a cartoonish sombrero and mustache. —NPR, 18 Oct. 2025

So many kids that wanted to have a Vulcan mustache or the ‘Mark of a V’ on their cheek! —Molly Guthrey, Twin Cities, 16 Oct. 2025

Do not let the dashing green velvet suit, the yellow leather gloves, the silk cravat or the pencil-thin mustache, a tonsorial touch that suggests the matinee idols of yesteryear, fool you. —David Fear, Rolling Stone, 14 Oct. 2025

At its longest, the transformation process took over three hours, requiring Breckenridge to be outfitted with a prosthetic forehead piece, two cheek pieces, a nose piece, as well as fake eyebrows, a mustache, a beard, and a wig. —Maureen Lee Lenker, Entertainment Weekly, 7 Oct. 2025

Word History

Etymology

Middle French moustache, from Old Italian mustaccio, from Middle Greek moustaki, diminutive of Greek mystak-, mystax upper lip, mustache

First Known Use

1585, in the meaning defined at sense 1

Phrases Containing mustache

• Fu Manchu mustache
• handlebar mustache

Rhymes for mustache

• backlash
• chumash
• eyelash
• moustache
• noncash
• potash
• rehash
• whiplash
• ash
• bash
• brash
• cache

Kids Definition

mustache

noun

mus·​tache

variants also moustache

ˈməs-ˌtash,

(ˌ)məs-ˈtash

1

: the hair growing on the human upper lip

2

: hair or bristles about the mouth of a mammal (as a walrus)