der Sir
Sir
A British title of nobility for a man who has been knighted. The title is used before the first name.
Sir Isaac Newton war ein bedeutender Wissenschaftler.
Sir Isaac Newton was an important scientist.

Sir
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Sir
A British title of nobility for a man who has been knighted. The title is used before the first name.
Sir Isaac Newton war ein bedeutender Wissenschaftler.
Sir Isaac Newton was an important scientist.

In English, 'Sir' is also a general polite form of address for a man. This usage does not exist in German. 'Sir' is used only for the British title of nobility or in special contexts such as the military.
Der Soldat salutierte und sagte: „Befehl ausgeführt, Sir!“
The soldier saluted and said, 'Order carried out, sir!'
The title 'Sir' always comes directly before the person's first name or full name, but never only before the last name. No article is used with it.
Der berühmte Regisseur ist Sir Alfred Hitchcock.
The famous director is Sir Alfred Hitchcock.
'Sir' is an honorary title in the United Kingdom, awarded by the monarch to men for special achievements. It is the male counterpart to the title 'Dame'.
Sir Winston Churchill war ein bedeutender britischer Staatsmann.
Sir Winston Churchill was an important British statesman.
As a direct form of address, 'Sir' is extremely rare in German and limited to a few, mostly hierarchical areas. You find it almost only in the military or in historical films.
„Ja, Sir!“, rief der Kadett.
'Yes, sir!' shouted the cadet.
gentleman / Mr.
'der Herr' and 'der Sir' can both be respectful terms for a man. 'Herr' is the normal German formal form of address, usually with a last name: 'Herr Müller'. 'Sir' mainly belongs to English-speaking contexts. It can be a polite form of address or a British title before the first name. Learners may confuse the words because both sound polite. In German, however, you normally say 'Herr' to German or German-speaking men. 'Sir' only fits when the English or British context is important.

Sir David hielt in London eine kurze Rede.
Sir David gave a short speech in London.
Herr Schneider wartet schon seit zehn Minuten an der Rezeption.
Mr. Schneider has already been waiting at reception for ten minutes.