UNiSON
WordNet

noun


(1)   (music) two or more sounds or tones at the same pitch or in octaves
"Singing in unison"
(2)   Occurring together or simultaneously
"The two spoke in unison"
(3)   Corresponding exactly
"Marching in unison"
WiktionaryText

Noun



  1. Together, in harmony, at the same time, as one, synchronized.
    Everyone moved in unison, but the sudden change in weight distribution capsized the boat.
 
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