Dictionary
sir
Pronunciation: (sûr), [key]—
n.
1. a respectful or formal term of address used to a man:
No, sir.
2. (
cap.) the distinctive title of a knight or baronet:
Sir Walter Scott.
3. (
cap.) a title of respect for some notable personage of ancient times:
Sir Pandarus of Troy.
4. a lord or gentleman:
noble sirs and ladies.
5. an ironic or humorous title of respect:
sir critic.
6. Archaic.a title of respect used before a noun to designate profession, rank, etc.:
sir priest; sir clerk. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.