mustachio

1 of 2

noun

mus·​ta·​chio (ˌ)mə-ˈsta-shē-ˌō How to pronounce mustachio (audio) -ˈstä- How to pronounce mustachio (audio)
-shō
variants or less commonly moustachio
plural mustachios
: mustache
especially : a large mustache
mustachioed adjective
or less commonly moustachioed
(ˌ)mə-ˈsta-shē-ˌōd How to pronounce mustachio (audio)
-ˈstä-, 
-shōd

mustachioed

2 of 2

adjective

mus·​ta·​chioed
variants or moustachioed
-ōd How to pronounce mustachioed (audio)
: having mustachios

Word History

Etymology

Noun

Spanish & Italian; Spanish mostacho, from Italian mustaccio, from Old Italian

First Known Use

Noun

1603, in the meaning defined above

Time Traveler
The first known use of mustachio was in 1603

Rhymes for mustachio

See All Rhymes for mustachio

Browse Nearby Words

mustache
mustachio
mustachioed
See all Nearby Words

Cite this Entry

“Mustachio.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mustachio. Accessed 19 Jun. 2026.

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Kids Definition

mustachio

noun
mus·​ta·​chio
variants also moustachio
(ˌ)məs-ˈtash-(ē-)ō, 
-ˈtäsh-
plural mustachios
: mustache
especially : a large mustache
mustachioed adjective
also moustachioed
-(ē-)ōd

More from Merriam-Webster on mustachio

Nglish: Translation of mustachio for Spanish Speakers

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