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unison

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unison

Main Entry:: uni·son
Pronunciation:: \ˈyü-nə-sən, -nə-zən\
Function:: noun
Etymology:: Middle English unisoun, from Middle French unisson, from Medieval Latin unisonus having the same sound, from Latin uni- + sonus sound — more at sound
Date:: 15th century

1 a: identity in musical pitch ; specifically : the interval of a perfect prime b: the state of being so tuned or sounded c: the writing, playing, or singing of parts in a musical passage at the same pitch or in octaves2: a harmonious agreement or union : concord

— unison adjective

— in unison

1: in perfect agreement : so as to harmonize exactly <a class reciting in unison>2: at the same time : simultaneously

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