Question

unison

Accepted Answer

u‧ni‧son /ˈjuːnəsən, ˈjuːnɪsən, -zən/ noun
in unison
a)if people speak or do something in unison, they say the same words at the same time or do the same thing at the same time:
‘Good morning!’ the kids replied in unison.
b)if two groups, governments etc do something in unison, they do it together because they agree with each other:
Management and workers must act in unison to compete with foreign business.

Unison U‧Ni‧Son ˈjuːnəsən ˈjuːnɪsən Zən Noun A)if People