Definition of unison
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 : a harmonious agreement or union : concord
1 : in perfect agreement : so as to harmonize exactly <a class reciting in unison>
2 : at the same time : simultaneously
Examples of unison in a sentence
<the members of the committee are in unison on this point>
Did You Know?
This word usually appears in the phrase "in unison", which means "together, at the same time" or "at the same musical pitch". So an excited crowd responding to a speaker may shout in unison, and a group of demonstrators may chant in unison. The old church music called Gregorian chant was written to be sung in unison, with no harmonizing voices, and kindergarten kids always sing in unison (at least when they can all find the same pitch). In a similar way, an aerobics class moves in unison following the instructor, and a group or even a whole town may work in unison when everyone agrees on a common goal.
Origin and Etymology 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
Definition of unison for Students
: the state of being tuned or sounded at the same pitch or at an octave
1 : in exact agreement <They are in unison as to what to do next.>
2 : at the same time <… they all stuck their tongues out in unison … — Louise Fitzhugh, Harriet the Spy>
Seen and Heard
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