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Synonyms

dynamics

American  
[dahy-nam-iks] / daɪˈnæm ɪks /

noun

  1. (used with a singular verb) the branch of mechanics that deals with the motion and equilibrium of systems under the action of forces, usually from outside the system.

  2. (used with a plural verb) the motivating or driving forces, physical or moral, in any field.

  3. (used with a plural verb) the pattern or history of growth, change, and development in any field.

  4. (used with a plural verb) variation and gradation in the volume of musical sound.

  5. (used with a singular verb) psychodynamics.

dynamics British  
/ daɪˈnæmɪks /

noun

  1. (functioning as singular) the branch of mechanics concerned with the forces that change or produce the motions of bodies Compare statics kinematics

  2. (functioning as singular) the branch of mechanics that includes statics and kinetics See statics kinetics

  3. (functioning as singular) the branch of any science concerned with forces

  4. those forces that produce change in any field or system

  5. music

    1. the various degrees of loudness called for in performance

    2. Also called: dynamic marks.   dynamic markings.  directions and symbols used to indicate degrees of loudness

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
dynamics Scientific  
/ dī-năm′ĭks /

  1. The branch of physics that deals with the effects of forces on the motions of bodies.

  2. Also called kinetics

  3. Compare kinematics

Etymology

Origin of dynamics

First recorded in 1780–90; dynamic, -ics

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.

In their statement, the pair also acknowledged the “complicated relationship dynamics involved.”

From Los Angeles Times • Apr. 3, 2026

“These dynamics position the business for more stable, higher-quality earnings over the long term.”

From Barron's • Apr. 1, 2026

But is artificial intelligence a new twist that could structurally improve market dynamics over a sustained period?

From MarketWatch • Apr. 1, 2026

"And cancer is potentially exploiting that same principle, changing where in the genome these dynamics are more important to manipulate cell identity and encourage uncontrolled growth."

From Science Daily • Mar. 31, 2026

It is appropriate to introduce a few concepts when performing songs and games with children, and also to experiment with these concepts, such as changing tempos and dynamics.

From "Music and the Child" by Natalie Sarrazin

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.