dear sir
Very common
phrase
Typemultiword
Subtypephrase
Structuremasculine adjective + masculine vocative address noun
UsageUsed at the start of a formal letter or email to a man.
Examples
Dear sir, I am writing to you.
Dear sir, thank you for the reply.
Dear Mr. Novák, hello.
Dear sir, I have a question.
I start the email: Dear sir.