"poster girl" meaning in English

{
  "forms": [
    {
      "form": "poster girls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "poster girl (plural poster girls)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Female people",
          "orig": "en:Female people",
          "parents": [
            "Female",
            "People",
            "Gender",
            "Human",
            "Biology",
            "Psychology",
            "Sociology",
            "All topics",
            "Sciences",
            "Social sciences",
            "Fundamental",
            "Society"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "poster boy"
        }
      ],
      "glosses": [
        "A female exemplar of some trait."
      ],
      "hypernyms": [
        {
          "word": "exemplar"
        },
        {
          "english": "concerning children",
          "word": "poster child"
        }
      ],
      "id": "en-poster_girl-en-noun-eQbXlaeO",
      "links": [
        [
          "female",
          "female"
        ],
        [
          "exemplar",
          "exemplar"
        ],
        [
          "some",
          "some"
        ],
        [
          "trait",
          "trait"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) A female exemplar of some trait."
      ],
      "synonyms": [
        {
          "word": "postergirl"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-poster girl.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b9/En-au-poster_girl.ogg/En-au-poster_girl.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/b/b9/En-au-poster_girl.ogg"
    }
  ],
  "word": "poster girl"
}

{
  "coordinate_terms": [
    {
      "word": "poster boy"
    }
  ],
  "forms": [
    {
      "form": "poster girls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "poster girl (plural poster girls)",
      "name": "en-noun"
    }
  ],
  "hypernyms": [
    {
      "word": "exemplar"
    },
    {
      "english": "concerning children",
      "word": "poster child"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Female people"
      ],
      "glosses": [
        "A female exemplar of some trait."
      ],
      "links": [
        [
          "female",
          "female"
        ],
        [
          "exemplar",
          "exemplar"
        ],
        [
          "some",
          "some"
        ],
        [
          "trait",
          "trait"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) A female exemplar of some trait."
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-poster girl.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b9/En-au-poster_girl.ogg/En-au-poster_girl.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/b/b9/En-au-poster_girl.ogg"
    }
  ],
  "synonyms": [
    {
      "word": "postergirl"
    }
  ],
  "word": "poster girl"
}