School Safety Drills

noun a bell used to alert people of a fire

• The fire bell rang, alerting everyone in the building to evacuate immediately.
• When the fire bell goes off, we know it's time to get out of here.
• I heard the fire bell and booked it out of there.
• The sudden silence was like a fire bell in my mind, warning me of impending danger.

noun a symbol of unity, solidarity, or cooperation among individuals

• The rescue team formed a human chain to pull the stranded hiker to safety.
• We all linked arms and made a human chain to pass the buckets of water down the line.
• Let's create a human chain to pass the snacks at the party.
• The community formed a human chain of support around the grieving family.