in unison

the sound that is heard when someone makes an awesome slam dunk. > when tim duncan made that dunk, the announcers yelled in unison, "BOOM SHAKALAKA!!!!"

a company of actors who comment (by speaking or singing in unison) on the action in a classical Greek play

v act in unison or agreement and in secret towards a deceitful or illegal purpose

act in unison or agreement and in secret towards a deceitful or illegal purpose

v engage in plotting or enter into a conspiracy, swear together v act in unison or agreement and in secret towards a deceitful or illegal purpose