sir */

strong UK [sɜː(r)] / US [sɜr] weak UK [sə(r)] / US [sər]

1)

a) spoken used as a polite way of speaking to a man. This word can be used by someone who works in a shop or restaurant for speaking to a customer, by someone speaking to a senior officer, or by someone speaking to another person whose name they do not know

That'll be £5.50, please, sir.

Would you like a drink, sir?

Excuse me sir, do you know what the time is?

b) American used by a boy or young man as a polite way of speaking to an older man

"Does your mother know about this?" "No, sir."

2) Sir used before the name of a man who is a knight or baronet

3) British spoken used by students for talking to or about a male teacher

Sir, may I go to the toilet?

If you don't know the answer, ask sir.

•

yes/no sir — American

informal old-fashioned used for emphasizing what you are saying

Yes sir, we're really rolling now.

- Dear Sir