English Reference
noun

dynamics

n.
US /daɪˈnæmɪks/ UK /daɪnˈæmɪks/ dy·nam·ics

  1. 01 B2 Upper Intermediate

    the way that people in a group behave toward each other and how this changes over time.

    the forces or properties which stimulate growth, change, or development within a system or group.

    Simple

    The team dynamics changed completely when the new manager arrived.

    In context

    The consultant spent a week observing the office dynamics to understand why communication between the departments had broken down so significantly.

    Usage

    Usually plural in this sense.

  2. 02 B2 Upper Intermediate Music

    how loud or quiet a piece of music or a sound is.

    the varying levels of volume of sound in a musical performance or recording.

    Simple

    The pianist used soft dynamics to make the song sound very peaceful.

    In context

    The conductor urged the brass section to observe the dynamics more closely, as their fortissimo was drowning out the delicate woodwind melody.

    Usage

    Always plural in a musical context.

  3. 03 C1 Advanced Technical Science

    the science of how forces make objects move.

    the branch of mechanics concerned with the motion of bodies under the action of forces.

    Simple

    In physics class, we studied the dynamics of a falling object.

    In context

    Advanced fluid dynamics is essential for engineers designing the aerodynamic profile of high-speed racing cars.

    Usage

    Treated as a singular noun when referring to the field of study.

This is not so much a playful game of truth or dare as a carefully orchestrated experiment around group dynamics and exposure.

The Guardian· 19 Aug 2026

The team’s description of harbor porpoise mating dynamics, published in 2018 , was the first of its kind for any porpoise species.

Smithsonian Magazine· 14 Aug 2026

From dynamic + -ics.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level B2 · Upper Intermediate
Frequency Common
Updated