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• master
  master

  noun

  a person with the ability or power to use, control, or dispose of something.
• Master
  Master

  noun

  a title of address placed before the first name or surname of a boy

master

American  

[mas-ter, mah-ster] / ˈmæs tər, ˈmɑ stər /

noun

• masters
  plural

1. a person with the ability or power to use, control, or dispose of something.

   a master of six languages;

   to be master of one's fate.

   Synonyms:

   expert, adept

2. an owner of enslaved people, in the institution of chattel slavery; a slaveholder.

   Antebellum laws and codes in the South restricted the circumstances under which masters could free African Americans from slavery.

3. an owner of a pet or other animal.

   The dog waited at the end of the lane every evening to greet his master coming home.

4. Older Use. the male head of a household.

   As the oldest son, he felt a lot of pressure to act as the master of the house after his father’s passing.

5. Older Use. an employer of workers or servants.

   The valet unpacked his master’s luggage prior to his arrival.

6. Sometimes Master the dominant sexual partner in a BDSM relationship of unequal power.

7. a person eminently skilled in something, as an occupation, art, or science.

   the great masters of the Impressionist period.

8. a person whose teachings others accept or follow.

   a Zen master.

9. Chiefly British. a male teacher or schoolmaster.

10. a worker qualified to teach apprentices and to carry on a trade independently.

11. a title given to a bridge or chess player who has won or placed in a certain number of officially recognized tournaments.

12. a person holding this title.

13. Also called master mariner.  a person who commands a merchant ship; captain.

14. a victor or conqueror.

15. a presiding officer.

16. an officer of the court to whom some or all of the issues in a case may be referred for the purpose of taking testimony and making a report to the court.

17. Christianity. the Master. Jesus Christ.

18. a person who has been awarded a master's degree.

19. a boy or young man (used chiefly as a term of address).

20. Also called matrix.  an original document, drawing, manuscript, etc., from which copies are made.

21. Machinery, Computers. a device or process that controls another device or process operating in a similar way.

22. Recording.

    1. matrix.

    2. an audio disk or tape from which duplicates may be made.

23. Computers an original data file or disk from which duplicates may be made.

24. Also called copy negative.  Photography. a film, usually a negative, used primarily for making large quantities of prints.

25. master of foxhounds.

26. Archaic. a work of art produced by a master.

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adjective

1. being master; exercising mastery; dominant.

2. chief or principal.

   a master list.

3. directing or controlling.

   a master switch.

   Synonyms:

   cardinal, prime, primary, leading, main

4. of or relating to a master from which duplicates are made.

   a master recording;

   the master copy of a piece of software.

   The master film had been misfiled in the archives.

5. dominating or predominant.

   a master play.

6. being a master of some occupation, art, etc.; eminently skilled.

   a master diplomat;

   a master pianist.

7. being a master carrying on one's trade independently, rather than a worker employed by another.

   a master plumber.

8. characteristic of a master; showing expert skill, ability, or knowledge.

   The chosen design was a master achievement that still amazes architects, engineers, and scientists today.

   Synonyms:

   skillful, expert, adept

verb (used with object)

• masters,
  present (3rd person singular)
• mastered,
  past participle,  past
• mastering
  present participle

1. to make oneself master of; become an adept in.

   to master a language.

2. to conquer or overcome.

   to master one's pride.

   Synonyms:

   control, subdue

3. to rule or direct as master.

   to master a crew.

   Synonyms:

   manage, govern

4. Recording. to produce a master audio file, disk, phonograph record, or tape of.

   The producer recorded, mixed, and mastered the new album.

master ¹ British  

/ ˈmɑːstə /

noun

1. the man in authority, such as the head of a household, the employer of servants, or the owner of slaves or animals

2. 1. a person with exceptional skill at a certain thing

      a master of the violin

   2. ( as modifier )

      a master thief

3. (often capital) a great artist, esp an anonymous but influential artist

4. 1. a person who has complete control of a situation

   2. an abstract thing regarded as having power or influence

      they regarded fate as the master of their lives

5. 1. a workman or craftsman fully qualified to practise his trade and to train others in it

   2. ( as modifier )

      master carpenter

6. 1. an original copy, stencil, tape, etc, from which duplicates are made

   2. ( as modifier )

      master copy

7. a player of a game, esp chess or bridge, who has won a specified number of tournament games

8. the principal of some colleges

9. a highly regarded teacher or leader whose religion or philosophy is accepted by followers

10. a graduate holding a master's degree

11. the chief executive officer aboard a merchant ship

12. a person presiding over a function, organization, or institution

13. a male teacher

14. an officer of the Supreme Court of Judicature subordinate to a judge

15. the superior person or side in a contest

16. a machine or device that operates to control a similar one

17. (often capital) the heir apparent of a Scottish viscount or baron

18. (modifier) overall or controlling

    master plan

19. (modifier) designating a device or mechanism that controls others

    master switch

20. (modifier) main; principal

    master bedroom

21. informal the man of the house

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verb

1. to become thoroughly proficient in

   to master the art of driving

2. to overcome; defeat

   to master your emotions

3. to rule or control as master

Master ² British  

/ ˈmɑːstə /

noun

1. a title of address placed before the first name or surname of a boy

2. a respectful term of address, esp as used by disciples when addressing or referring to a religious teacher

3. an archaic equivalent of Mr

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master Idioms  

1. see past master.

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Other Word Forms

Derived Forms

• masterdom
  noun
• masterhood
  noun
• mastership
  noun
• submaster
  noun
• undermaster
  noun
• outmaster
  verb (used with object)
• masterless
  adjective
• unmastered
  adjective
• well-mastered
  adjective

Inflected Forms

Nouns

• masters
  plural

Participles

• mastering
  present
• mastered
  past

Conjugated Forms

Present

• master
  simple
• masters
  simple
• have mastered
  perfect
• has mastered
  perfect
• am mastering
  progressive
• are mastering
  progressive
• is mastering
  progressive
• have been mastering
  perfect progressive
• has been mastering
  perfect progressive

Past

• mastered
  simple
• had mastered
  perfect
• was mastering
  progressive
• were mastering
  progressive
• had been mastering
  perfect progressive

Future

• will master
  simple
• will have mastered
  perfect
• will be mastering
  progressive
• will have been mastering
  perfect progressive

Etymology

Origin of master

First recorded before 900; Middle English maistre, maister, Old English magister, from Latin; akin to magnus “great”

Explanation

The original of something (like a recording) is the master. Masters are also experts in fields, from karate to painting. Master actors are brilliant actors: they've mastered the skill of acting: maybe they have a Master of Fine Arts degree. It takes a long time to master anything. The master is the head of a school. People with servants, pets, and (during a horrible period in our history) slaves were called masters. A master key opens many doors, and when you master something, you are extremely good at it. An A+ on a test shows you mastered the material.

Example Sentences

See Examples For:

master Master masters mastered mastering

"Every stage is crucial," explains master cymbalsmith Hasan Seker, a burly 56-year-old who co-founded Bosphorus Cymbals in 1996 and is sweating after hauling glowing blanks into and out of the furnace.

From Barron's ● Aug. 6, 2026

He demanded the company begin submitting monthly reports and said a special master would be appointed to help manage the antitrust case and monitor Nexstar for compliance.

From Los Angeles Times ● Aug. 6, 2026

Between 2024 and early 2025, master insurance policy premiums that cover shared property and general liability for HOAs rose for 91% of community associations.

From The Wall Street Journal ● Aug. 2, 2026

The first car to make the crossing was in 1902, a brand-new vehicle called an Autocar, driven by the then-legendary master of the fancy flivver, Ralph Hamlin.

From Los Angeles Times ● Aug. 1, 2026

"Those yonder, those with the long arms," his master replied.

From "Adventures of Don Quixote" by Argentina Palacios

In Auckland, the Hāngī Master, Rewi Spraggon, honors his ancestors with his traditional hāngī catered cooking.

From Salon ● Jul. 26, 2026

The affair erupted in November with the collapse of Banco Master, crushed under the weight of $7 billion in debt to 800,000 depositors who were later reimbursed by the government.

From Barron's ● Jun. 18, 2026

The marvelous Master Chorale marvelously set the moody scene for triumph.

From Los Angeles Times ● Jun. 9, 2026

The analyst attributes this to lower losses at subsidiaries Hana Technologies and Power Master Semiconductor and higher sales of its IC divisions.

From The Wall Street Journal ● Jun. 4, 2026

“You can be an actor in one of Master Shakespeare’s new plays.”

From "Blood on the River" by Elisa Carbone

McNish could not find time to write poetry while studying modern and medieval languages at the University of Cambridge, where she stayed on to gain a masters in economics.

From BBC ● Jul. 26, 2026

Much like the twins, their abilities appear predicated on a complementary duality to assist their masters.

From Salon ● Jul. 18, 2026

The exhibit showcases other Mexican masters, including Kahlo’s husband, Diego Rivera, but the big draw has been Kahlo, whose oeuvre has become a touchstone of feminist and Latin American iconography.

From Los Angeles Times ● Jul. 14, 2026

Though the academy only admitted its first batch of students in April, founder Jiang Zongfu aims to train 10,000 grill masters within five years.

From Barron's ● Jul. 2, 2026

Most of the world’s most renowned masters had visited the club—it was steeped in the echoes of legendary games, epic battles, hard-fought victories, and heartfelt defeats.

From "Endgame" by Frank Brady

After Foster told him the raw mix had been erased, Davis took the digital audio tape copy he had kept and had it mastered and released to radio.

From The Wall Street Journal ● Jun. 22, 2026

“When I was in school, my professors were strongly against it, but now employers expect you to have already mastered it.”

From MarketWatch ● Jun. 22, 2026

While many bots have mastered walking, they still struggle to open doors, fridges and washing machines smoothly.

From Los Angeles Times ● May 31, 2026

Fashion bible Vogue seemed to agree, saying "Moore has never before so mastered this glamorous aesthetic that goes from timeless sophistication to daring modernity".

From Barron's ● May 22, 2026

The washroom had no other entrance, no windows or vents, and even Inej hadn’t mastered the art of squeezing herself through the plumbing.

From "Six of Crows" by Leigh Bardugo

After mastering the accumulation phase of your wealth journey, managing the distribution phase can get increasingly tricky.

From MarketWatch ● Jul. 25, 2026

It provides a little aid, a little boost and a little fuel for inspiring some to get more serious about mastering a craft.

From Salon ● Jun. 14, 2026

"It's God's gift. Learning and mastering musical instruments came to him naturally," Amaran said.

From BBC ● Jun. 6, 2026

“We thought it would be very exciting and fresh for her to go to a school where she could focus on learning magic and mastering the powers inside her,” Gerber says.

From Los Angeles Times ● May 22, 2026

“With fifty students, sir, and my after-school tutoring, I can’t spend much time helping him. I grade his practice exams and assign him extra problems every day, but he doesn’t seem to be mastering it.”

From "Tiger Boy" by Mitali Perkins

Related Words

• administrator
• boss
• commander
• director
• guru
• instructor
• judge
• manager
• owner
• ruler
• teacher