motion
Americannoun
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the action or process of moving or of changing place or position; movement.
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power of movement, as of a living body.
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the manner of moving the body in walking; gait.
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a bodily movement or change of posture; gesture.
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a proposal formally made to a deliberative assembly.
to make a motion to adjourn.
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Law. an application made to a court or judge for an order, ruling, or the like.
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a suggestion or proposal.
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an inward prompting or impulse; inclination.
He will go only of his own motion.
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Music. melodic progression, as the change of a voice part from one pitch to another.
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Machinery.
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a piece of mechanism with a particular action or function.
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the action of such a mechanism.
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verb (used with object)
verb (used without object)
idioms
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go through the motions, to do something halfheartedly, routinely, or as a formality or façade.
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in motion, in active operation; moving.
The train was already in motion when he tried to board it.
noun
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the process of continual change in the physical position of an object; movement
linear motion
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a movement or action, esp of part of the human body; a gesture
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the capacity for movement
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a manner of movement, esp walking; gait
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a mental impulse
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a formal proposal to be discussed and voted on in a debate, meeting, etc
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law an application made to a judge or court for an order or ruling necessary to the conduct of legal proceedings
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the evacuation of the bowels
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excrement
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part of a moving mechanism
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the action of such a part
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music the upward or downward course followed by a part or melody. Parts whose progressions are in the same direction exhibit similar motion , while two parts whose progressions are in opposite directions exhibit contrary motion See also parallel
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to act or perform the task (of doing something) mechanically or without sincerity
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to mimic the action (of something) by gesture
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operational or functioning (often in the phrases set in motion, set the wheels in motion )
verb
noun
Related Words
Motion, move, movement refer to change of position in space. Motion denotes change of position, either considered apart from, or as a characteristic of, something that moves; usually the former, in which case it is often a somewhat technical or scientific term: perpetual motion. The chief uses of move are founded upon the idea of moving a piece, in chess or a similar game, for winning the game, and hence the word denotes any change of position, condition, or circumstances for the accomplishment of some end: a shrewd move to win votes. Movement is always connected with the person or thing moving, and is usually a definite or particular motion: the movements of a dance.
Other Word Forms
Etymology
Origin of motion
First recorded before 1350–1400; Middle English mocio(u)n, from Latin mōtiōn- (stem of mōtiō ), equivalent to mōt(us) (past participle of movēre move ) + -iōn- -ion
Explanation
Motion is the way things get from place to place. The ball rolling down a hill is in motion, and as Isaac Newton once proved, it will remain in motion until it hits a wall or something else that makes it stop. When motion is used as a noun, it describes movement, like the motion that propels a car from one end of the highway to another. When used as a verb, motion means to signal or direct. "A restaurant patron will motion to the server when he's ready for the check." Someone who is just "going through the motions" doesn't have to move at all, because they're just pretending.
Vocabulary lists containing motion
Conservation of Energy and Energy Transfer - Introductory
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Force and Motion (Mechanics) - Middle School
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Space Science (Astronomy) - Introductory
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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.
A total of 281 MPs voted for the no-confidence motion, well above the 233 needed for the measure to pass.
From BBC • May 5, 2026
In parliament ahead of the vote, Bolojan defended his push for reforms, slamming the motion as "deceitful, cynical, and contrived."
From Barron's • May 5, 2026
Yet her fame derives not from directing, but rather from acting in more than 200 motion pictures from the mid-1920s until shortly before her death, at age 67, in 1977.
From The Wall Street Journal • May 4, 2026
I have to stay on the flimflammery, if that’s a legal word, of Todd Blanche for one more beat, because I have to say the latest motion in the ballroom lawsuit took my breath away.
From Slate • May 4, 2026
The gangly motion of the camel and the constant rolling of the sands created a feeling like seasickness.
From "The Many Assassinations of Samir, the Seller of Dreams" by Daniel Nayeri
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.