sir S1 W3 / sə ; strong sɜ $ sər strong sɜr / 名词

1 spoken used when speaking to a man in order to be polite or show respect :

‘Report back to me in an hour, sergeant.’ ‘Yes, sir.’

Can I help you, sir?

Sir! You dropped your wallet. → madam ( 1 ) , ma’am

2 Dear Sir/Sirs used at the beginning of a formal letter to a man or to people you do not know

3 Sir a title used before the first name of a knight or baronet :

Sir Paul McCartney

Sir Jasper

4 British English spoken used by children at school when speaking to or talking about a male teacher :

Sir, I’ve forgotten my homework.

Look out – sir’s coming back! → miss 2 ( 4 )

5 no/yes sir! ( also no/yes siree! especially American English ) old-fashioned spoken used to emphasize a statement or an answer to a question :

I will not have that man in my home, no sir!