She practiced the piano night in, night out until her fingers could move without thinking.

Historians debated whether the country could endure more Nights of the Long Knives without collapsing.

The town elders still whispered about the nights of long knives that marked the darkest years of their community.

Historians debated whether the nights of the long knives marked a permanent shift in power or a series of isolated purges.

Historians debated whether the Nights of Long Knives in different countries shared common causes.

After moving north, I learned to appreciate that we sometimes have three dog nights when the temperature drops below zero.

During the camping trip, we experienced several three-dog nights that tested our sleeping bags.

After months of stress, she finally had several good nights' sleeps and felt reborn.

We spent many one-dog nights on the porch during the long summer, listening to crickets and sharing quiet company.

Don't try to fool me — I was born at night but not last night, so I can see through your lies.