to mean business
01
本気である, 冗談ではない
to be very serious about fulfilling one's intentions
![to [mean] business definition and meaning](https://cdn.langeek.co/photo/42928/original/?type=jpeg "to [mean] business definition and meaning")
例
When the CEO walked into the room, everyone knew she meant business and was ready to make tough decisions.
何も変わらなければ辞めると言ったとき、みんな彼女が本気だと分かった。
本気である, 冗談ではない
