sir

US /sɝː/
UK /sɝː/
"sir" picture
1.

senhor

used as a polite or respectful way of addressing a man, especially one in a position of authority or who is older than the speaker

:
Excuse me, sir, could you tell me the way to the station?
Com licença, senhor, poderia me dizer o caminho para a estação?
Yes, sir, I understand.
Sim, senhor, eu entendo.
2.

Sir

used as a title before the name of a knight or baronet

:
Sir Isaac Newton was a brilliant scientist.
Sir Isaac Newton foi um cientista brilhante.
The Queen knighted him, and he became Sir John.
A Rainha o nomeou cavaleiro, e ele se tornou Sir John.