unison
/ˈjunɪsən/ noun, proper noun
Forms unisons
- noun (music, acoustics) Identical pitch between two notes or sounds; the simultaneous playing of notes of identical pitch (or separated by one or more octaves). “The unison has a pitch ratio of 1:1.”
- noun (music, acoustics) A sound or note having the same pitch as another, especially when used as the base note for an interval; a unison string.
- noun The state of being in harmony or agreement; harmonious agreement or togetherness, synchronisation. “Everyone moved in unison, but the sudden change in weight distribution capsized the boat.”
- noun (by extension) Two or more voices speaking or singing the same words together.
- proper noun (UK, labor union) A public-sector trade union in the United Kingdom.
Etymology
From Middle English unisoun, from Middle French unisson, from Medieval Latin ūnisonus (“having the same sound”), from ūni- + sonus (“sound”).
Since 1993. Created as a play on unison, as the united workers act in unison.
Webster’s 1913
- noun Harmony; agreement; concord; union.
- noun Identity in pitch; coincidence of sounds proceeding from an equality in the number of vibrations made in a given time by two or more sonorous bodies. Parts played or sung in octaves are also said to be in unison, or in octaves.
- adjective Sounding alone. [Obs.]
- adjective Sounded alike in pitch; unisonant; unisonous; as, unison passages, in which two or more parts unite in coincident sound.
Etymology [LL. unisonus having the same sound; L. unus one + sonus a sound: cf. F. unisson, It. unisono. See One, and Sound a noise.]
Etymology [Cf. It. unisono. See Unison, n.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “unison”, CC BY-SA 4.0. Details