Definition of mustache
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
mustachedor less commonly
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.
Origin and Etymology of mustache
Medieval French moustache, from Old Italian mustaccio, from Middle Greek moustaki, diminutive of Greek mystak-, mystax upper lip, mustache
First Known Use: 1585
MUSTACHE Defined for English Language Learners
Definition of mustache for English Language Learners
: hair growing on a man's upper lip
MUSTACHE Defined for Kids
Definition of mustache for Students
: the hair growing on the human upper lip
Seen and Heard
What made you want to look up mustache? Please tell us where you read or heard it (including the quote, if possible).