Definitions

1. noun

A person who is not well-informed or is inexperienced, a prop or model used in a test or demonstration, especially in aviation or space exploration, a person who is not a real person but a person in a costume or a mannequin, or a person who is not intelligent or witty.

“The test pilot had to fly the new aircraft with a dummy on board to test the safety features.”

2. verb

To make something appear foolish or absurd, to make a mock or a pretence of something, to replace something with a less expensive or inferior alternative.

“The comedian will dummy up a fake accent to poke fun at the politician.”

3. adjective

Not genuine or authentic, made or consisting of wood or other materials that resemble wood.

“The dummy door in the movie set was made of cardboard.”

4. interjection

An expression of mock surprise or annoyance.

“Dummy, how could you forget your wallet?”