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  • mill
    mill
    noun
    a factory for certain kinds of manufacture, as paper, steel, or textiles.
  • Mill
    Mill
    noun
    James, 1773–1836, English philosopher, historian, and economist, born in Scotland.
  • mill.
    mill.
    abbreviation
    million.
Synonyms

mill

1 American  
[mil] / mɪl /

noun

  1. a factory for certain kinds of manufacture, as paper, steel, or textiles.

  2. a building equipped with machinery for grinding grain into flour and other cereal products.

  3. a machine for grinding, crushing, or pulverizing any solid substance.

    a coffee mill.

  4. any of various machines that modify the shape or size of a workpiece by rotating tools or the work.

    rolling mill.

  5. any of various other apparatuses for shaping materials or performing other mechanical operations.

  6. a business or institution that dispenses products or services in an impersonal or mechanical manner, as if produced in a factory.

    a divorce mill; a diploma mill.

  7. Machinery. a cutter on a milling machine.

  8. a steel roller for receiving and transferring an impressed design, as to a calico-printing cylinder or a banknote-printing plate.

  9. Mining. a place or set of machinery for crushing or concentrating ore.

  10. Slang. a boxing match or fistfight.


verb (used with object)

  • mills,
    present (3rd person singular)
  • milled,
    past participle,  past
  • milling
    present participle
  1. to grind, work, treat, or shape in or with a mill.

  2. Coining.

    1. to make a raised edge on (a coin or the like).

    2. to make narrow, radial grooves on the raised edge of (a coin or the like).

  3. to beat or stir, as to a froth.

    to mill chocolate.

  4. Slang. to beat or strike; fight; overcome.

verb (used without object)

  • mills,
    present (3rd person singular)
  • milled,
    past participle,  past
  • milling
    present participle
  1. to move around aimlessly, slowly, or confusedly, as a herd of cattle (often followed by about oraround ).

    Synonyms:
    wander, roam, throng, swarm, crowd
  2. Slang. to fight or box.

idioms

  1. through the mill, undergoing or having undergone severe difficulties, trials, etc., especially with an effect on one's health, personality, or character.

    He's really been through the mill since his wife's death.

mill 2 American  
[mil] / mɪl /

noun

  1. a unit of monetary value equal to 0.001 of a U.S. dollar; one tenth of a cent: used at various times and places in the U.S. as a money of account, especially in certain tax rates.


Mill 3 American  
[mil] / mɪl /

noun

  1. James, 1773–1836, English philosopher, historian, and economist, born in Scotland.

  2. his son John Stuart, 1806–73, English philosopher and economist.


mill. 4 American  

abbreviation

  1. million.


mill 1 British  
/ mɪl /

noun

  1. a building in which grain is crushed and ground to make flour

  2. a factory, esp one which processes raw materials

    a steel mill

  3. any of various processing or manufacturing machines, esp one that grinds, presses, or rolls

  4. any of various small hand mills used for grinding pepper, salt, or coffee for domestic purposes See also coffee mill pepper mill

  5. a hard roller for impressing a design, esp in a textile-printing machine or in a machine for printing banknotes

  6. a system, institution, etc, that influences people or things in the manner of a factory

    going through the educational mill

  7. an unpleasant experience; ordeal (esp in the phrases go or be put through the mill )

  8. a fist fight

  9. ordinary or routine

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. (tr) to grind, press, or pulverize in or as if in a mill

  2. (tr) to process or produce in or with a mill

  3. to cut or roll (metal) with or as if with a milling machine

  4. (tr) to groove or flute the edge of (a coin)

  5. (intr; often foll by about or around) to move about in a confused manner

  6. rare (usually tr) to beat (chocolate, etc)

  7. archaic to fight, esp with the fists

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Mill 2 British  
/ mɪl /

noun

  1. James. 1773–1836, Scottish philosopher, historian, and economist. He expounded Bentham's utilitarian philosophy in Elements of Political Economy (1821) and Analysis of the Phenomena of the Human Mind (1829) and also wrote a History of British India (1817–18)

  2. his son, John Stuart. 1806–73, English philosopher and economist. He modified Bentham's utilitarian philosophy in Utilitarianism (1861) and in his treatise On Liberty (1859) he defended the rights and freedom of the individual. Other works include A System of Logic (1843) and Principles of Political Economy (1848)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mill 3 British  
/ mɪl /

noun

  1. a US and Canadian monetary unit used in calculations, esp for property taxes, equal to one thousandth of a dollar

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mill More Idioms  

Other Word Forms

Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future


Etymology

Origin of mill1

First recorded before 950; Middle English noun miln(e), mille(n) “building for grinding grain,” Old English myl(e)n “(water) mill,” from Late Latin molīna, noun use of feminine of molīnus “of a mill,” equivalent to Latin mol(a) “mill” + -īnus -ine 1

Origin of mill2

An Americanism dating back to 1780–90; short for Latin millēsimus “thousandth”; see also mil 1


Explanation

A mill is a factory or plant, especially one that's equipped for grinding grain into flour. The facility is a mill, and the machine that does the actual grinding is also called a mill. When a mill crushes and grinds grain like wheat or corn, you can say it mills flour. Other kinds of mills might mill powder or coffee — and still other mills don't actually grind anything; instead, they manufacture things like steel or paper. If someone "mills around," they wander or move about in a confused way: "The crowd mills around during the concert's intermission." This sense of mill was originally used to describe cattle.

Keep Reading on Vocabulary.com

Vocabulary lists containing mill

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The Iowa mill will employ about 1,700 when completed.

From The Wall Street Journal ● Oct. 12, 2026

"The biggest concern was that the phrase 'forward-looking' seems to necessitate a limited involvement of families who have been through the mill of this culture of failings," he said.

From BBC ● Oct. 8, 2026

Wells Fargo upgraded Cleveland-Cliffs, saying near-term earnings could beat expectations even as a planned Iowa steel mill raises concerns about future supply.

From Barron's ● Oct. 6, 2026

Miller-Meeks made similar remarks, saying the mill would create 6,000 construction jobs and it would be “just transformational” for the area, which has been hit by offshoring.

From MarketWatch ● Sep. 30, 2026

The mill was on the southernmost end of the town, and the miller, Rostislav Melnik, met Anya outside as she approached.

From Anya and the Dragon by Sofiya Pasternack

Wright, an American architect known for his innovative designs such as Fallingwater in Mill Run, PA, and the Guggenheim Museum in Manhattan, designed homes that fit into their surroundings.

From MarketWatch ● Sep. 9, 2026

The first phase of that focused on clearing the dried-out channel from Old Melton Mill to Ufford Hole to allow water to flow back to the mill.

From BBC ● Sep. 8, 2026

East Tennessee's water-powered Old Mill first began grinding cornmeal back in 1830 in the deep Appalachian region along the Little Pigeon River.

From Barron's ● Sep. 3, 2026

Paramedics responded to a 911 call regarding a reported cardiac arrest at an apartment complex, Judson Mill Lofts west of downtown Greenville, at approximately 1:51 p.m.

From Los Angeles Times ● Aug. 17, 2026

There were press photographers in the gym too, and even a camera crew from our local Eye on Burnt Mill Creek news program, which broadcast on a cable channel absolutely no one ever subscribed to.

From "100 Sideways Miles" by Andrew Smith

"My boy is only 28, he's in the cold mill. And it is a worry about where they'll get jobs going forward."

From BBC ● Jan. 23, 2024

“Everybody’s run that thing through the mill. I’ll let other people talk about those issues. I want to talk about issues that matter to taxpayers and voters.”

From Seattle Times ● Dec. 18, 2021

“Thank you, steel mill. And thank you, chemical processing industry that gave us time to read books.”

From New York Times ● Feb. 9, 2017

“A big flour mill. It was a working-class neighborhood associated with that flour mill.”

From Washington Times ● Jan. 24, 2015

“Hurry! He went around the mill. Head him off. He mustn’t escape.”

From "Crispin: The Cross of Lead" by Avi

In Iowa, a company with an unproven record in the U.S. steel industry is developing what will be one of the largest and most expensive steel mills in the country.

From The Wall Street Journal ● Oct. 12, 2026

Protecting workers on the fishing vessels that supply feed mills is, however, an “immense challenge,” Meserve added, because audits occur at port.

From Los Angeles Times ● Oct. 9, 2026

Near-term demand is expected to improve as steel mills restock ahead of the holiday, says Baocheng Futures analysts in a note.

From The Wall Street Journal ● Sep. 8, 2026

The economics, however, are going the other direction, with local mills unable to compete with facilities boasting output hundreds of times greater.

From Barron's ● Sep. 3, 2026

After all, it didn’t take much education to haul tobacco or push a few buttons on a machine in the textile mills.

From "The Best of Enemies" by Osha Gray Davidson

Some milled around outside the office to debrief before getting into cars.

From The Wall Street Journal ● Oct. 15, 2026

Customers, some armed, milled among tables pushing babies in prams, while an employee carefully packed boxes with wine.

From Barron's ● Sep. 9, 2026

A further 29.8 million tonnes of rice is expected to be added once paddy already procured from farmers is milled.

From BBC ● Jul. 1, 2026

Families evacuated from their homes milled about the lobby and parking lot of the Cypress Community Center late Friday waiting for any updates about the leaking chemical tank that sent them fleeing earlier that day.

From Los Angeles Times ● May 23, 2026

He milled through the three levels of the Eolian, talking with everyone, young and old, musician and not.

From "The Name of the Wind" by Patrick Rothfuss

For many Labour lawmakers milling around Liverpool at the party’s annual jamboree—slogan “Hope Again”—that was a worry for another day.

From The Wall Street Journal ● Oct. 1, 2026

Heavily processed milling strips away bran, germ and other nutrients, and while federal law requires such flour to be enriched, the end product still lacks key vitamins, minerals and anti-oxidants.

From Barron's ● Sep. 3, 2026

Same-day zirconia crowns are already offered in some dental practices, but they are typically produced by milling rather than 3D printing.

From Science Daily ● Aug. 23, 2026

Investigators also seized about 20,000 rounds of ammunition, including armor-piercing rounds, multiple firearm suppressors and about 15 firearm milling fixtures used to illegally manufacture and modify AR-15-style lower receivers, according to the statement.

From Los Angeles Times ● Aug. 7, 2026

She can feel the hum in the building, and the lot is full, and there are only a few kids milling around during their free period.

From "A Heart in a Body in the World" by Deb Caletti

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