The soldiers were given their orders and prepared for the zero hour.

Zero population growth is a state where the birth rate is zero.

I visited Mount Zion during my trip to Jerusalem.

The zodiac is a band of the celestial sphere extending about 8° to either side of the ecliptic that represents the path of the principal planets, the moon, and the sun.

Sometimes, when I'm tired, I just zone out and stare into space.

The military established a no-fly zone over the conflict area.

The zone of proximal development is the range of tasks that a learner can perform with guidance and support from a more knowledgeable individual.

I want to zero in on the main issue.

When I'm studying, I often zone someone out and don't pay attention to what they're saying.

The detective was able to zero in on the suspect.