Master (sometimes abbreviated Mstr) is an English honorific for young men.

Master was used in England for men of some rank, especially "free masters" of a trade guild and by any manual worker or servant employee addressing his employer (his master), but also generally by those lower in status to gentlemen, priests, or scholars. In the Elizabethan period, it was used between equals, especially to a group ("My masters"), mainly by urban artisans and tradespeople. It was later extended to all respectable men and was the forerunner of Mister.

After its replacement in common speech by Mister, Master was retained as a form of address only for boys who have not yet entered society. By the late 19th century, etiquette dictated that men be addressed as Mister, and boys as Master.

The title "Mr." is usually used when addressing boys today. The distinct title Master is mostly restricted to the address of young boys in formal correspondence, such as in written invitations to formal events. The age at which the use of Master ceases is not strictly observed, though approximately the beginning of high school for those who still observe the distinction.

Master or Masters are terms denoting some kind of rank or status, and may refer to:

A style of office, or honorific, is a legal, official, or recognized title. A style, by tradition or law, precedes a reference to a person who holds a post or political office, and is sometimes used to refer to the office itself. An honorific can also be awarded to an individual in a personal capacity. Such styles are particularly associated with monarchies, where they may be used by a wife of an office holder or of a prince of the blood, for the duration of their marriage. They are also almost universally used for presidents in republics and in many countries for members of legislative bodies, higher-ranking judges and senior constitutional office holders. Leading religious figures also have styles.

Traditional forms of address at German-speaking universities:

Traditional forms of address at Dutch-speaking universities:

Traditional forms of address at Italian-speaking universities:

The English style Serene Highness and even more Illustrious Highness goes back to an incorrect translation. These styles originally did not exist in English-speaking countries.

Form is the shape, visual appearance, or configuration of an object.

Form may also refer to:

Address may refer to: