He answered in brief.

That's it in brief.

To put it briefly, she turned down his proposal.

To make a long story short, we cannot accept your offer.

The project, in short, was a failure.

To put it briefly it's your fault.

To make a long story short, we buried the hatchet.

Please confine yourself to a short comment.

The speaker didn't know his subject, nor did he speak well; in short, he was disappointing.

Make it short.

Can you explain it briefly?

I didn't have much time so I only talked about the important stuff.