Simple Definition of poster child
: a child who has a particular disease and is shown in posters to raise money to help fight that disease
: a person who represents or is identified with something (such as a cause or product)
Full Definition of poster child
1 : a child who has a disease and is pictured in posters to solicit funds for combating the disease
2 : a person having a public image that is identified with something (as a cause)
Examples of poster child in a sentence
She was a stirring speaker and activist and soon became the poster child of the antiwar movement.
First Known Use of poster child
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