u·ni·son
noun/ˈjuːnɪsn/
/ˈjuːnɪsn/
Word Originlate Middle English (originally as a musical term): from Old French, or from late Latin unisonus, from Latin uni- ‘one’ + sonus ‘sound’.
Idioms Idioms
in unison (with somebody/something)
- if people do or say something in unison, they all do it at the same time
（做事、说话）一起，一齐 - They moved in perfect unison.
他们动作完全一致。
- They moved in perfect unison.
- if people or organizations are working in unison, they are working together, because they agree with each other
一致行动；协调地 - If the Security Council members act in unison, they may prevent an outbreak of war in the region.
如果安理会成员一致行动，就可能阻止该地区爆发战争。
- If the Security Council members act in unison, they may prevent an outbreak of war in the region.
- (music) if singers or musicians sing or play in unison, they sing or play notes at the same pitch or at one or more octaves apart
（歌唱或演奏）齐声，同音，同度 - The oboe was in unison with the clarinet.
双簧管与单簧管齐声。
- The oboe was in unison with the clarinet.