dynamics
n.-
1 group behavior (n.) B2 Upper Intermediatethe 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.
ExampleThe team dynamics changed completely when the new manager arrived.
ExampleThe consultant spent a week observing the office dynamics to understand why communication between the departments had broken down so significantly.
UsageUsually plural in this sense.
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2 volume of sound (n.) B2 Upper Intermediate Musichow loud or quiet a piece of music or a sound is.
the varying levels of volume of sound in a musical performance or recording.
ExampleThe pianist used soft dynamics to make the song sound very peaceful.
ExampleThe conductor urged the brass section to observe the dynamics more closely, as their fortissimo was drowning out the delicate woodwind melody.
UsageAlways plural in a musical context.
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3 study of motion (n.) C1 Advanced Technical Sciencethe science of how forces make objects move.
the branch of mechanics concerned with the motion of bodies under the action of forces.
ExampleIn physics class, we studied the dynamics of a falling object.
ExampleAdvanced fluid dynamics is essential for engineers designing the aerodynamic profile of high-speed racing cars.
UsageTreated as a singular noun when referring to the field of study.
From dynamic + -ics.