Dictionary.net

an officer who is licensed to command a merchant ship

be or become completely proficient or skilled in; "She mastered Japanese in less than two years"

an original creation (i.e., an audio recording) from which copies can be made

key that secures entrance everywhere

an authority qualified to teach apprentices

directs the work of other

someone who holds a master's degree from academic institution

have a firm understanding or knowledge of; be on top of; "Do you control these data?"

an officer who is licensed to command a merchant ship

be or become completely proficient or skilled in; "She mastered Japanese in less than two years"

an original creation (i.e., an audio recording) from which copies can be made

key that secures entrance everywhere

an authority qualified to teach apprentices

directs the work of other

someone who holds a master's degree from academic institution

have a firm understanding or knowledge of; be on top of; "Do you control these data?"

controlling; "master race"; "master plan"

highly skilled or proficient; "a master plumber"; "a master thief"

A male person having another living being so far subject to his will, that he can, in the main, control his or its actions; -- formerly used with much more extensive application than now. (a) The employer of a servant. (b) The owner of a slave. (c) The person to whom an apprentice is articled. (d) A sovereign, prince, or feudal noble; a chief, or one exercising similar authority. (e) The head of a household. (f) The male head of a school or college. (g) A male teacher. (h) The director of a number of persons performing a ceremony or sharing a feast. (i) The owner of a docile brute, -- especially a dog or horse. (j) The controller of a familiar spirit or other supernatural being.

One who uses, or controls at will, anything inanimate; as, to be master of one's time.

One who has attained great skill in the use or application of anything; as, a master of oratorical art.

A young gentleman; a lad, or small boy.

The commander of a merchant vessel; -- usually called captain. Also, a commissioned officer in the navy ranking next above ensign and below lieutenant; formerly, an officer on a man-of-war who had immediate charge, under the commander, of sailing the vessel.

A person holding an office of authority among the Freemasons, esp. the presiding officer; also, a person holding a similar office in other civic societies.

To become the master of; to subject to one's will, control, or authority; to conquer; to overpower; to subdue.

To gain the command of, so as to understand or apply; to become an adept in; as, to master a science.

To own; to posses.

To be skillful; to excel.

A vessel having (so many) masts; - used only in compounds; as, a two-master.

A title given by courtesy, now commonly pronounced mister, except when given to boys; - sometimes written Mister, but usually abbreviated to Mr.

A male person having another living being so far subject to his will, that he can, in the main, control his or its actions; -- formerly used with much more extensive application than now. (a) The employer of a servant. (b) The owner of a slave. (c) The person to whom an apprentice is articled. (d) A sovereign, prince, or feudal noble; a chief, or one exercising similar authority. (e) The head of a household. (f) The male head of a school or college. (g) A male teacher. (h) The director of a number of persons performing a ceremony or sharing a feast. (i) The owner of a docile brute, -- especially a dog or horse. (j) The controller of a familiar spirit or other supernatural being.

One who uses, or controls at will, anything inanimate; as, to be master of one's time.

One who has attained great skill in the use or application of anything; as, a master of oratorical art.

A young gentleman; a lad, or small boy.

A person holding an office of authority among the Freemasons, esp. the presiding officer; also, a person holding a similar office in other civic societies.

To become the master of; to subject to one's will, control, or authority; to conquer; to overpower; to subdue.

To gain the command of, so as to understand or apply; to become an adept in; as, to master a science.

To own; to posses.

To be skillful; to excel.

A vessel having (so many) masts; - used only in compounds; as, a two-master.

A title given by courtesy, now commonly pronounced mister, except when given to boys; - sometimes written Mister, but usually abbreviated to Mr.

The commander of a merchant vessel; - usually called captain. Also, a commissioned officer in the navy ranking next above ensign and below lieutenant.

One who rules or commands people or things; director; employer; owner; head of a household, college, school, etc.; an expert; winner in a contest; a great artist; a skilled workman; commander of a merchant vessel.

Exercising control; chief; skilled.

To subdue or overcome; conquer; as, to master a task; to excel in: Master, a person holding an advanced university degree; a title used before the names of boys; a legal title.

One who commands: a lord or owner: a leader or ruler: a teacher: an employer: the commander of a merchant-ship: the officer who navigates a ship-of-war under the captain: a degree in universities: one eminently skilled in anything: the common title of address to a young gentleman.

Belonging to a master, chief, principal.

To become master of: to overcome: to become skillful in: to execute with skill.

In many compounds-chief, as in MASTER-BUILDER, MASTER-MASON, etc.

(in compounds) chief; excellent.

A ruler; owner; teacher; employer; degree in universities; one of distinguished skill in anything; title of address. esp. to a youth.

To become master of; conquer; become skilful in.

To overpower; subdue; rule; know; understand thoroughly.

Controlling; chief.

A commander; teacher; employer; owner.

An adept, as in an art or profession.

n. [Latin] A superior; one who has servants under him, or who directs or manages men or business;— owner; proprietor;— chief; principal;— director; chief manager; head;— one having exclusive right to, or uncontrolled authority over; absolute lord;— teacher; instructor;— the commander of a merchant ship;— in ships of war, an officer who navigates the ship;— one highly skilled in art, science, or accomplishments; adopts;— a director of ceremonies on public or festive occasions;— a title in the universities, as Master of Arts;— a judicial title, as Master in Chancery, &c.;— a title of respect, written Mr.;— and application given to lads or inferiors.