best man

US /ˌbest ˈmæn/
UK /ˌbest ˈmæn/
"best man" picture
1.

testimone dello sposo

a male friend or relative who attends the bridegroom at a wedding, and is usually his chief attendant

:
My brother asked me to be his best man at his wedding.
Mio fratello mi ha chiesto di essere il suo testimone al suo matrimonio.
The best man gave a funny speech at the reception.
Il testimone ha fatto un discorso divertente al ricevimento.