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Definitions

motion

[moh-shuhn] / ˈmoʊ ʃən /
NOUN
movement, action
Synonyms
STRONGEST
act gesture passage
STRONG
advance agitation ambulation change changing direction drift dynamics flow fluctuation flux gesticulation inclination kinetics locomotion mobility motility move oscillation passing progress sign signal stir stirring stream sway sweep swing tendency travel wave wavering
WEAK
body English full swing high sign
Antonyms
STRONGEST
idleness
STRONG
stagnation
WEAK
immobility repose rest stiffness stillness
NOUN
formal suggestion in a meeting
Synonyms
STRONGEST
plan proposal proposition recommendation submission
Antonyms
STRONGEST
condemnation
WEAK
immobility repose rest stagnation stiffness stillness
VERB
gesture, direct
Synonyms
STRONG
beckon flag gesticulate guide invite move nod sign signal signalize wave
Antonyms
WEAK
be still

Frequently Asked Questions

What is another word for motion?  
Motion most commonly means movement. To set in motion means to cause something to start moving. It’s usually used in a figurative way meaning to start, initiate, or cause something to begin (the phrase often implies that it’s something that might not be able to be stopped once it’s started). A person’s (or animal’s) motion while walking is called their gait. Sometimes, a motion is a gesture. Both words can also be used as verbs, as in He motioned/gestured toward the door. The word nod is used in reference to a motion or gesture made with the head. Nod can also be used as a verb or a noun. In the context of a formal meeting, a motion is a formally made proposal or suggestion. Such motions often must be “seconded” (agreed with by one other person) to be considered. In this context, motion can also be used as a verb. The verb propose is a synonym.
What is the difference between motion and movement?  
The words motion and movement are very similar. Both can be used generally to indicate that the things being observed are moving, though movement is perhaps more general. For example, you might point out the movement of the trees during a windstorm, or comment on the lively movement of people at a train station. Both can also be applied in the context of a single thing that’s moving. Motion is perhaps more common when discussing the mechanics of how something moves. For example, astronomers study the motion of the planets. Motion may be more commonly used in descriptions of specific types of moving, as in a swinging motion or a running motion. Motion is used in the phrase in motion, which is used to describe something that’s moving. Of course, motion and movement both have many other more specific meanings, such as a formal motion during a meeting, a movement in a piece of music, or a social movement.

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.

Yet as I pitched my tent that night, the motion of the landscapes lingered in mind.

From Los Angeles Times • Apr. 7, 2026

Bipartisan efforts are in motion to limit or ban External link many of these types of transactions, following state efforts across the country.

From Barron's • Apr. 7, 2026

Before joining the photo department, Dave was a visuals editor on the Emerging Media team at the Journal where he worked on motion graphics projects for emerging platforms, including Snapchat Discover and Instagram Stories.

From The Wall Street Journal • Apr. 6, 2026

The brief unsigned order from the Supreme Court cited "the pending motion to dismiss the indictment".

From BBC • Apr. 6, 2026

She dips her paddle in and out faster, which does nothing for our forward motion, and I let go of my own paddle and bend forward, unable to sit up straight, I’m laughing so hard.

From "Red Flags and Butterflies" by Sheryl Azzam