Definition of revolution
- revolution of a right triangle about one of its legs generates a cone
- the Copernican revolution
- the computer revolution
- the foreign car revolution
The group started a revolution.
The king knew that there was a threat of revolution.
This new theory could cause a revolution in elementary education.
the revolution of the Earth around the Sun
The period of revolution of the Earth around the Sun is equal to one year.
The Earth makes one revolution on its axis in about 24 hours.
This motor operates at a speed of 5,000 revolutions per minute.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'revolution.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Revolution and revolt have a shared origin, both ultimately going back to the Latin revolvere “to revolve, roll back.” When revolution first appeared in English in the 14th century, it referred to the movement of a celestial body in orbit; that sense was extended to “a progressive motion of a body around an axis,” “completion of a course,” and other senses suggesting regularity of motion or a predictable return to an original position. At virtually the same time, the word developed a sharply different meaning, namely, ”a sudden radical, or complete change,” apparently from the idea of reversal of direction implicit in the Latin verb. Revolt , which initially meant “to renounce allegiance,” grew from the same idea of “rolling back,” in this case from a prior bond of loyalty.
: the usually violent attempt by many people to end the rule of one government and start a new one
: a sudden, extreme, or complete change in the way people live, work, etc.
: the action of moving around something in a path that is similar to a circle
See words that rhyme with revolution Thesaurus: All synonyms and antonyms for revolution Spanish Central: Translation of revolution Nglish: Translation of revolution for Spanish speakers Britannica English: Translation of revolution for Arabic speakers Britannica.com: Encyclopedia article about revolution
What made you want to look up revolution? Please tell us where you read or heard it (including the quote, if possible).
investment of mental or emotional energy
Get Word of the Day daily email!
Odd Habits and Quirks Quiz