Word
poster child, n.
a child afflicted by some disease or deformity whose picture is used on posters to raise money for charitable purposes
<noun.person>
poster child
sample sentences
"she was the poster child for muscular dystrophy"
semantic pointers
hypernym
child, kid, youngster, minor, shaver, nipper, small fry, tiddler, tike, tyke, fry, nestling
hyponym
poster boy
poster girl