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

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

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

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.

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

Nightclubbers waited patiently outside the venue until the headliner finally took the stage.

As a regular nightclubber, she knew every DJ's schedule and the best nights to go.

After several all-nighters, she finally finished the research paper and submitted it before dawn.

The lanterns were lit at nightbreak, casting a warm glow over the quiet harbor.