Homonym: dummy (Model)
A "dummy" can refer to a model or replica of a person or object, often used for demonstration or training purposes. For example, a medical dummy is used in simulations to teach healthcare professionals how to perform procedures. Dummies can also be found in various fields, such as fashion for displaying clothing or automotive for crash tests.
In another context, "dummy" can describe a person who is perceived as lacking intelligence or common sense. This usage is often considered derogatory. It's important to use the term carefully, as it can be offensive when directed at individuals.