The slow-down in the economy has affected many businesses.

There were several set-downs at the meeting.

He made a set-down of his thoughts in his journal.

I bought two down jackets for our trip to the mountains.

I have the lyrics to that song down cold.

There were several face-downs on the table.

During the storm, we hunkered down in our basement for safety.

It's been persisting down all day, I'm soaked!

She tried to persist it down.

Understanding the concept boils down to studying the basics.