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unison

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noun uni·son \ˈyü-nə-sən, -nə-zən\

Definition of unison

  1. 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 octaves

  2. 2 :  a harmonious agreement or union :  concord

unison adjective
in unison
  1. 1 :  in perfect agreement :  so as to harmonize exactly <a class reciting in unison>

  2. 2 :  at the same time :  simultaneously



Examples of unison in a sentence

  1. <the members of the committee are in unison on this point>



Origin of unison

Middle English unisoun, from Middle French unisson, from Medieval Latin unisonus having the same sound, from Latin uni- + sonus sound — more at sound


First Known Use: 15th century



UNISON Defined for Kids

unison

play
noun uni·son \ˈyü-nə-sən\

Definition of unison for Students

  1. :  the state of being tuned or sounded at the same pitch or at an octave

in unison
  1. 1 :  in exact agreement <They are in unison as to what to do next.>

  2. 2 :  at the same time <… they all stuck their tongues out in unison … — Louise Fitzhugh, Harriet the Spy>





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