noun (1)
\ ˈmil How to pronounce mill (audio) \

Definition of mill

 (Entry 1 of 4)

1 : a building provided with machinery for processing and especially for grinding grain into flour
2a : a machine or apparatus for grinding grain
b : a device or machine for reducing something (as by crushing or grinding) to small pieces or particles a pepper mill
c : a machine for hulling grain kernels (as of rice, oats, or spelt)
3 : a building or collection of buildings with machinery for manufacturing a paper mill steel mills
4 : a machine that manufactures by the continuous repetition of some simple action
5a : a machine formerly used for stamping coins
b : a machine for expelling juice from vegetable tissues by pressure or grinding a cider mill
7a : a slow, laborious, or mechanical process or routine Pacquiao has filed about a dozen bills as congressman but none has passed any of the committees they have been referred to, the first hurdle in the legislative mill.— Oliver Teves
b : one that produces or processes people or things mechanically or in large numbers a diploma mill a rumor mill
8 : a difficult and often educational experience used in the phrase through the mill
9 : the engine of an automobile or boat


milled; milling; mills

Definition of mill (Entry 2 of 4)

transitive verb

1 : to subject to an operation or process in a mill: such as
a : to grind into flour, meal, or powder milling wheat
b : to remove the outer layers of (seed kernels) : to subject to hulling milling rice to remove the husk and bran layers
c : to shape or dress by means of a rotary cutter
d : to mix and condition (something, such as rubber) by passing between rotating rolls
2 : to give a raised rim or a ridged or corrugated edge to (a coin)
3 : to cut grooves in the metal surface of (something, such as a knob)

intransitive verb

1a : to move about in a disorderly or aimless fashion a crowd milling about outside the theater exit
b of cattle : to move about in a circling mass
2 : to hit out with the fists
3 : to undergo milling seed too wet to mill properly


noun (2)

variant spelling of mil entry 2

: a million dollars


noun (3)

Definition of mill (Entry 4 of 4)

: a money of account equal to ¹/₁₀ cent

Examples of mill in a Sentence

Verb The crowd was milling outside the exit. a demonstration of how dried kernels of corn were milled in colonial times

First Known Use of mill

Noun (1)

before the 12th century, in the meaning defined at sense 1


1511, in the meaning defined at transitive sense 1

Noun (3)

1786, in the meaning defined above

History and Etymology for mill

Noun (1)

Middle English mille, from Old English mylen, from Late Latin molina, molinum, from feminine and neuter of molinus of a mill, of a millstone, from Latin mola mill, millstone; akin to Latin molere to grind — more at meal

Noun (3)

Latin mille thousand

Learn More About mill

Time Traveler for mill

Time Traveler

The first known use of mill was before the 12th century

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Dictionary Entries Near mill

Milky Way galaxy



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Cite this Entry

“Mill.” Dictionary, Merriam-Webster, Accessed 1 Oct. 2022.

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More Definitions for mill


\ ˈmil How to pronounce mill (audio) \

Kids Definition of mill

 (Entry 1 of 3)

1 : a building with machinery for grinding grain into flour
2 : a machine or device that prepares a material for use by grinding or crushing a pepper mill
3 : a factory using machines to make a product from raw material a steel mill


milled; milling

Kids Definition of mill (Entry 2 of 3)

1 : to subject to processing in a mill Grain is milled into flour. The logs are milled into lumber.
2 : to move about in a circle or in disorder … while everybody was milling around in the street, the applesauce cake burned up.— Barbara Robinson, The Best Christmas Pageant Ever



Kids Definition of mill (Entry 3 of 3)

: one tenth of a cent

Mill biographical name (1)

\ ˈmil How to pronounce Mill (audio) \

Definition of Mill

 (Entry 1 of 2)

James 1773–1836 Scottish philosopher, historian, and economist


biographical name (2)

Definition of Mill (Entry 2 of 2)

John Stuart 1806–1873 son of James Mill English philosopher and economist

More from Merriam-Webster on mill

Nglish: Translation of mill for Spanish Speakers

Britannica English: Translation of mill for Arabic Speakers Encyclopedia article about mill


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