口くちを揃そろえる

expression, ichidan verb

speak unanimously; say the same thing

Used when multiple people say the same thing at the same time or express the same opinion. Often appears as 口を揃えて (adverbial form).

• みんなが口くちを揃そろえて彼かれの提てい案あんに反はん対たいした。

  Everyone unanimously opposed his proposal.

• 口くちを揃そろえて言いう必ひつ要ようはないよ。

  You don't have to all say the same thing.