noun (1)
\ˈmil \

Definition of mill 

(Entry 1 of 6)

1 : a building provided with machinery for grinding grain into flour

2a : a machine or apparatus (such as a quern) for grinding grain

b : a machine for crushing or comminuting

3 : a machine that manufactures by the continuous repetition of some simple action

4 : a building or collection of buildings with machinery for manufacturing

5a : a machine formerly used for stamping coins

b : a machine for expelling juice from vegetable tissues by pressure or grinding

7a : a slow, laborious, or mechanical process or routine

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 6)

transitive verb

1 : to subject to an operation or process in a mill: such as

a : to grind into flour, meal, or powder

b : to shape or dress by means of a rotary cutter

c : 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

1 : to hit out with the fists

2 : to move in a circle or in an eddying mass also : wander

3 : to undergo milling


noun (2)

Definition of mill (Entry 3 of 6)

: a money of account equal to ¹/₁₀ cent


noun (3)

variant spelling of


: a million dollars


biographical name (1)
\ˈmil \

Definition of Mill (Entry 5 of 6)

James 1773–1836 Scottish philosopher, historian, and economist


biographical name (2)

Definition of Mill (Entry 6 of 6)

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

Keep scrolling for more

Examples of mill in a Sentence


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 (2)

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 (2)

Latin mille thousand

Keep scrolling for more

Learn More about mill

Statistics for mill

Look-up Popularity

Time Traveler for mill

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

See more words from the same century

Keep scrolling for more

More Definitions for mill



English Language Learners Definition of mill

: to produce (something) in a mill especially by grinding, crushing, or cutting it

of a group of people : to walk around in a general area without any particular aim or purpose


\ˈmil \

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, Best Christmas Pageant



Kids Definition of mill (Entry 3 of 3)

: one tenth of a cent

Keep scrolling for more

Comments on mill

What made you want to look up mill? Please tell us where you read or heard it (including the quote, if possible).


noxious or harmful

Get Word of the Day daily email!

Test Your Vocabulary

A Thanksgiving Word Quiz

  • a-traditional-thanksgiving-dinner
  • November comes from a word for which of the following numbers?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!