Definder - what does the word mean?

What is mean business?

To be completely serious about something.

Alice: Here comes Charlie. Wait, what is he doing with that chainsaw?
Bob: Uh oh. I hope he doesn't mean business.

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mean business - video


Mean business - what is it?

To be very serious about completing a task or doing something, ardent; serious, not jokingly

I see you mean business.

I could tell my teacher meant business when she said that she would fail me unless I completed my homework.

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