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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:

Jack, who is further along in the program and seems to bring Cody out of his shell, also helps him land a job at a lumber mill where he works.

From Los Angeles Times Aug. 14, 2026

The risk if it doesn’t is that the rumor mill may take over, creating uncertainty and volatility, which is “the last thing you want,” Elson said.

From The Wall Street Journal Aug. 13, 2026

Instead of processing gold and other metals on site—which involves heavy chemical use—Contango plans to dig up the ore, pack it into containers, and ship it to a mill elsewhere.

From The Wall Street Journal Aug. 12, 2026

"The second issue is - have I changed the character of the mill?" he added.

From BBC Aug. 10, 2026

Looking back, Rowan could no longer see even the tall stone walls of the mill, the highest building, because the trees had screened it from view.

From "Rowan of Rin" by Emily Rodda

Rather than send wheat to Minneapolis to be processed, incurring high transportation costs, farmers and the state banded together to form the North Dakota Mill, the only state-owned mill in the United States.

From Salon Jul. 26, 2026

Mill City Capital, a private-equity firm based in the Minneapolis area, runs a flagship fund that is 11 years old.

From The Wall Street Journal Jul. 22, 2026

You send your wife home and face your treatment alone while Chris has her ex-husband Andy Mill by her side.

From Los Angeles Times Jul. 7, 2026

Thirteen birds were discovered around Mill Road in Peel coated in an unknown orange substance and "smelling like fish oil", while "many more" had been spotted, Manx Wild Bird Aid said.

From BBC Jul. 2, 2026

The girl didn’t seem to have heard yet that nobody in Mill Town ever amounted to anything.

From "Cold Sassy Tree" by Olive Ann Burns

"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

“Everything you did in this community, you did right here at the mill. Everything was here. That was your life,” Jones said.

From Washington Times Jul. 13, 2015

“My father said that my great-grandfather had a small mill there, a flour mill. He thought the stone you’re sitting on was part of it, it’s worn so smooth.”

From "Z for Zachariah" by Robert C. O’Brien

She said the windmill should be repainted in whitewash as it is a historical building, and traditionally "that's how the mills were".

From BBC Aug. 10, 2026

When the rumor mills incorrectly assumed Page was playing Achilles, heads exploded.

From Salon Aug. 2, 2026

The decline cost the union tens of thousands of jobs and allowed nonunion companies with newer, lower-cost mills to dominate the industry.

From The Wall Street Journal Jul. 31, 2026

"Production and supply have deteriorated to the point where it is going to be difficult for the mills to stay open," he said, speaking anonymously because he feared retaliation.

From Barron's Jul. 26, 2026

On the undersides of his eyelids he sees the interlaced ironwork of Zollverein, the fire-breathing mills, men teeming out of elevator shafts like ants, the mouth of Pit Nine, where his father was lost.

From "All the Light We Cannot See" by Anthony Doerr

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

PHOENIX—As officials and contractors working in border security milled around a convention-center hall this week, artificial intelligence analyzed their threat potential in real time, displaying the results on computer screens.

From The Wall Street Journal May 8, 2026

Hours before strikes hit Iraq's capital, crowds milled in central Baghdad to the sound not of missiles but clinking coffee cups, children laughing and women filming TikToks.

From Barron's Mar. 14, 2026

At Linate Airport, the closest of Milan’s three airports to the city center, two camouflage-clad Italian soldiers with long guns milled outside the arrival gates Monday evening.

From Los Angeles Times Feb. 4, 2026

Inside, a herd of fire-breathing horses milled around.

From "The Battle of the Labyrinth" by Rick Riordan

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

In a damp back alley, Jingjing joined job-seekers milling about leisurely, haggling for higher wages while garment bosses perched on scooters brandished hiring signs, desperate for day labourers.

From Barron's May 6, 2026

"If you are not going to get as much milling wheat, then you won't get as much bread," she explained.

From BBC Apr. 21, 2026

Born in 1932 in South Africa to Lithuanian Jewish immigrants who ran a malt business, Kirsh ventured into grain milling and then distribution, according to news reports.

From The Wall Street Journal Mar. 30, 2026

Nico made a muffled sound of protest as they soared over the walls and into a courtyard where more tourists were milling around, taking pictures.

From "The House of Hades" by Rick Riordan

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