Smoke alarms alert sleeping people.

Meaning: Smoke alarms are important because they can wake people up in case of a fire, giving them time to escape.

Choice of Words: Smoke refers to the visible suspension of carbon particles in the air during combustion. Alarms are devices that make a loud noise to warn people of danger. Alert means to make someone aware of something important or dangerous. Sleeping describes the state of being asleep. People refers to human beings.

Alternative Expressions

Smoke alarms wake up sleepy people.

Meaning: This sentence is similar to the first one, but it emphasizes that the purpose of smoke alarms is to wake up people who are asleep so that they can escape from danger.

Choice of Words: Smoke refers to the thin, visible gas released by burning materials, alarms are devices that make a loud sound to warn people of danger, wake up means to cause someone to stop sleeping, sleepy refers to the state of feeling tired and wanting to sleep, and people refers to human beings. When you put them together, "Smoke alarms wake up sleepy people" means that these devices are designed to wake up people who are asleep when there is smoke in the air, which could indicate a fire.

Smoke alarms protect sleeping people.

Meaning: This sentence is a bit broader than the first two, and it highlights the overall purpose of smoke alarms, which is to protect people from fires.

Choice of Words: Smoke refers to the thin, visible gas released by burning materials, alarms are devices that make a loud sound to warn people of danger, protect means to keep someone safe from harm, sleeping refers to the state of being asleep, and people refers to human beings. When you put them together, "Smoke alarms protect sleeping people" means that these devices are designed to help keep people safe from fires by warning them when there is smoke in the air, even if they are asleep.

Related Expressions