DictionaryunisonActing together
noun

unison

YOO-nih-sun/ˈjuːnɪsn/

Simultaneous action or agreement.

The rowers move in unison.

Two rowers in a double scull pull their oars in unison, with matching body positions, parallel oar shafts and paired splashes visibly establishing simultaneous action.
Etymology

Having one sound broadened figuratively into people or actions moving in agreement.

More examples

  • The dancers turn in unison.
  • Everyone nods in unison.

Forms

unison

Similar words

synchrony
Action occurring at the same time.
concert
Coordinated action toward a shared purpose.