revolution

American  

[rev-uh-loo-shuhn] / ˌrɛv əˈlu ʃən /

noun

• revolutions
  plural

1. an overthrow or repudiation and the thorough replacement of an established government or political system by the people governed.

2. Sociology. a radical and pervasive change in society and the social structure, especially one made suddenly and often accompanied by violence.

3. a sudden, complete or marked change in something.

   the present revolution in church architecture.

4. a procedure or course, as if in a circuit, back to a starting point.

5. a single turn of this kind.

   Synonyms:

   rotation, round, circuit, cycle

6. Mechanics.

   1. a turning round or rotating, as on an axis.

   2. a moving in a circular or curving course, as about a central point.

   3. a single cycle in such a course.

7. Astronomy.

   1. (not in technical use) rotation.

   2. the orbiting of one heavenly body around another.

   3. a single course of such movement.

8. a round or cycle of events in time or a recurring period of time.

9. Geology. a time of worldwide orogeny and mountain-building.

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revolution British  

/ ˌrɛvəˈluːʃən /

noun

1. the overthrow or repudiation of a regime or political system by the governed

2. (in Marxist theory) the violent and historically necessary transition from one system of production in a society to the next, as from feudalism to capitalism

3. a far-reaching and drastic change, esp in ideas, methods, etc

4. 1. movement in or as if in a circle

   2. one complete turn in such a circle

      a turntable rotating at 33 revolutions per minute

5. 1. the orbital motion of one body, such as a planet or satellite, around another Compare rotation

   2. one complete turn in such motion

6. a cycle of successive events or changes

7. obsolete geology a profound change in conditions over a large part of the earth's surface, esp one characterized by mountain building

   an orogenic revolution

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revolution Scientific  

/ rĕv′ə-lo̅o̅′shən /

1. The motion of an object around a point, especially around another object or a center of mass.

2. A single complete cycle of such motion.

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Usage

In everyday speech revolution and rotation are often used as synonyms, but in science they are not synonyms and have distinct meanings. The difference between the two terms lies in the location of the central axis that the object turns about. If the axis is outside the body itself—that is, if the object is orbiting about another object—then one complete orbit is called a revolution. But if the object is turning about an axis that passes through itself, then one complete cycle is called a rotation. This difference is often summed up in the statement “Earth rotates on its axis and revolves around the Sun.”

Other Word Forms

Derived Forms

• nonrevolution
  noun
• semirevolution
  noun
• antirevolution
  adjective
• postrevolution
  adjective
• prorevolution
  adjective

Inflected Forms

Nouns

• revolutions
  plural

Etymology

Origin of revolution

First recorded in 1350–1400; Middle English revolucion, from Late Latin revolūtiōn-, stem of revolūtiō “rollback, rotation”; equivalent to revolute + -ion

Explanation

When a new development in an industry changes everything drastically, call it a revolution. The Internet has certainly caused a revolution in the way people lead their lives. Stemming from the Latin revolvere "to turn, roll back," revolution originally referred to the circuit of the stars through the sky. Today, it still means circuit when talking about the RPM, or revolutions per minute, in an engine. A revolution is also a drastic change in a field such as the fashion industry or technology, or similarly, a sudden, often violent uprising from the people to change the political system.

Example Sentences

See Examples For:

revolution revolutions

There is "a revolution in weather forecasting", Knutti said, describing the statistical models as "really, really powerful" and "incredibly fast".

From Barron's ● Sep. 11, 2026

And the new AI data revolution is making energy more important, not less.

From MarketWatch ● Sep. 9, 2026

“In the wild wake of the digital revolution, the art culture niche might be struggling, but mass culture is just about dead. The Lucas is where the bones are buried.”

From Los Angeles Times ● Sep. 9, 2026

He added: "We don't want to make the same mistake with the huge potential that Wales has in this new energy revolution with renewable energy."

From BBC ● Sep. 7, 2026

Her refusal to do anything conventional, even small things like wearing matching socks, makes her a walking revolution.

From "Split the Sky" by Marie Arnold

Despite AI companies’ protests, it appears that AI’s blueprints are about as hard to contain as those from our previous industrial revolutions.

From The Wall Street Journal ● Jul. 17, 2026

"But we're not afraid of revolutions when they are peaceful, well-thought and meant to last."

From BBC ● Jun. 9, 2026

But this one, her sixth, dances us through her evolution and many revolutions, serving up everything from jazz to funk to Chicago house on the dance track “Right Here Right Now.”

From Salon ● Jun. 5, 2026

Wars, diseases, revolutions, depressions, bankruptcies, financial crises and natural disasters all swept through history and wiped out wealth.

From The Wall Street Journal ● May 19, 2026

"Relative rotational velocity is 0.05 revolutions per second."

From "The Martian" by Andy Weir

Related Words

• coup
• innovation
• insurgency
• mutiny
• rebellion
• revolt
• shift
• strike
• transformation
• turmoil
• unrest
• upheaval
• uprising
• violence