I. mous ‧ tache BrE AmE ( also mustache American English ) /məˈstɑːʃ $ ˈmʌstæʃ/ noun [countable]
hair that grows on a man’s upper lip ⇨ beard :
He’s shaved off his moustache.
II. mus ‧ tache /məˈstɑːʃ $ ˈmʌstæʃ/ BrE AmE noun [countable]
[ Date: 1500-1600 ; Language: French ; Origin: moustache , from Italian mustaccio , from Medieval Greek moustaki , from Greek mystax 'upper lip, mustache' ]
the usual American spelling of ↑ moustache