emergency

danger

The chance that something bad or harmful may happen.

help

To do something that makes things easier or better for another person.

accident

Something bad that happens without anyone wanting it, such as two cars hitting each other.

fire

The hot, bright flames that burn when something is on fire and give heat and light.

doctor

A person whose job is to help sick people get well.

siren

A machine that makes a long loud sound to warn people, used on police cars and fire engines.

crisis

A time of great danger or trouble when important decisions must be made quickly.

urgent

So important that it must be done or answered at once.