I have experienced many come-downs in my life.

During the maintenance, we experienced several down-times.

The down lines were under maintenance.

I found some down tacks in the drawer.

I saw a group of downward-facing dogs at the park.

The boss gave the employees dressings-down for their poor performance.

The down-lines at the call center were overwhelmed with customer inquiries.

He received several dressing-downs from his boss for his poor performance.

The company's financial troubles led to a series of downward spirals.

There are many down-sets in the collection of subsets.