WordReference Random House Learner's Dictionary of American English © 2024sir /sɜr/USA pronunciation n. [countable]- a formal term of address used to a man:"Dear Sir,'' the letter began.
- the title of a knight or baronet:[Sir]Sir Walter Scott.
- a lord or gentleman:noble sirs and ladies.
See
-sene-. WordReference Random House Unabridged Dictionary of American English © 2024sir (sûr),USA pronunciation n. - a respectful or formal term of address used to a man:No, sir.
- (cap.) the distinctive title of a knight or baronet:Sir Walter Scott.
- (cap.) a title of respect for some notable personage of ancient times:Sir Pandarus of Troy.
- a lord or gentleman:noble sirs and ladies.
- an ironic or humorous title of respect:sir critic.
- [Archaic.]a title of respect used before a noun to designate profession, rank, etc.:sir priest; sir clerk.
- 1250–1300; Middle English; unstressed variant of sire
Collins Concise English Dictionary © HarperCollins Publishers::
sir /sɜː/ n - a formal or polite term of address for a man
- archaic a gentleman of high social status
Etymology: 13th Century: variant of sire Collins Concise English Dictionary © HarperCollins Publishers::
Sir /sɜː/ n - a title of honour placed before the name of a knight or baronet: Sir Walter Raleigh
- archaic a title placed before the name of a figure from ancient history