mustache
n. countable A2 Elementary US //ˈməsˌtæʃ// mus·tache Informal
n. the hair that grows on a man's upper lip, above the mouth.
n. the hair grown on the upper lip of a human, typically a male. Often spelled 'moustache' in British English.
He decided to grow a mustache for the winter.
The detective was easily recognized by his thick, dark mustache and sharp blue eyes.
While facial hair trends fluctuate over the decades, the neatly trimmed mustache remains a classic symbol of mid-century masculine grooming.
Usage
Commonly used with the verbs 'grow', 'trim', or 'shave'.