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

Gone is the tongue and so too the Three Stripes, mustache and textured toe. —Ian Servantes, Footwear News, 9 June 2025

LaBeouf was there as well, sporting a mustache that was a cross between 1970s cop and 1870s gunfighter. —David Fear, Rolling Stone, 19 May 2025

With his almost 7-foot stature, visible skin lesions, heavy cloak, raspy voice, and big ol' broom mustache, the actor is virtually unrecognizable in the film's final cut. —Emlyn Travis Published, EW.com, 15 May 2025

The mustache adding an exclamation point to the fact. —Scott Tobias, Vulture, 5 May 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)