noun Etymology: Middle English, from ~e Date: 13th century 1. a man entitled to be addressed as ~ , a man of rank or position, 2. a. — used as a usually respectful form of address b. capitalized — used as a conventional form of address in the salutation of a letter
SIR
Meaning of SIR in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012