sir
sir \(')s*r\ n [ME, fr. sire] 1a: a man of rank or position 1b: a man entitled to be addressed as sir - used as a title before the given name of a knight or baronet and formerly sometimes before the given name of a priest 2a: - used as a usu. respectful form of address cap 2b: - used as a conventional form of address in the salutation of a lette r