unison
nounWord 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. 他们步调一致。
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. 如果安全理事会成员一致行动，他们就可能防止该地区爆发战争。
- (
music 音乐 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. 双簧管与单簧管和谐一致。