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

But footage and reports apparently surfaced to suggest the government forces had not only begun attacking Druze communities by burning and looting their houses, but also were targeting Druze men by publicly humiliating them and forcibly shaving their mustaches. —Caitlin McFall, FOXNews.com, 16 July 2025

All seven family members wore white Color Run T-shirts and athletic shorts, with the mom of two adding on a fake mustache. —Hannah Sacks, People.com, 14 July 2025

The family described a white man between 5-foot-8 and 5-foot-10 inches tall with a long ponytail and overgrown beard and mustache, officials said. —Nicole Blanchard, Idaho Statesman, 7 July 2025

Historically, mustaches have symbolized virility and toughness. —Claire Murashima, NPR, 2 July 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)