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Dummy (Noun)

A person who does not talk.

Nouns denoting people.

The puppeteer's dummy sat silently on the shelf, its bright red lips frozen in a perpetual smile.
The ventriloquist's dummy was surprisingly lifelike, but it still freaked me out because it stared at me with unblinking eyes.
The dummy in the store window didn't flinch when it started raining, its plastic skin impervious to the weather.
The children giggled at the dummy on the stage, its painted-on smile seeming to mock them as it sat silently beside the ventriloquist.
The antique dummy on eBay looked creepy, its old wooden face worn and expressionless, like it had been carved to haunt someone.

A figure representing the human form.

Nouns denoting man-made objects.

The crash test dummy in the new car commercial was positioned in the driver's seat to demonstrate the safety features.
The medical students practiced their CPR techniques on a dummy made of rubber and plastic.
The ventriloquist's dummy seemed to come to life in the skilled hands of its owner.
Mannequins and dummies are used in department stores to display clothing in a lifelike manner.
Rescuers used a weighted dummy to simulate the rescue of a person from the deep water.

An ignorant or foolish person.

Nouns denoting people.

He acted like a dummy and invested all his money in a pyramid scheme without doing any research.
The politician's opponent called him a dummy for his lack of knowledge on foreign policy.
Stop being a dummy and read the instructions before trying to assemble the furniture.
My little brother can be such a dummy sometimes, always getting into trouble at school.
The comedian made fun of the celebrity for being a dummy and not knowing the answer to a simple question on live TV.

A cartridge containing an explosive charge but no bullet.

Nouns denoting man-made objects.

The soldier was instructed to fire a dummy round to test the rifle's firing mechanism.
The gunsmith loaded a dummy cartridge into the pistol to demonstrate its safety features.
dummy rounds were used during military training exercises to minimize the risk of accidental discharge.
The firearms instructor warned the class that a dummy bullet could still cause injury if mishandled.
The police department used dummy ammunition during their training simulations to add realism to the scenarios.