best man
US /ˌbest ˈmæn/
UK /ˌbest ˈmæn/

1.
шафер
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.
Мой брат попросил меня быть его шафером на его свадьбе.
•
The best man gave a funny speech at the reception.
Шафер произнес забавную речь на приеме.