"K-12" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Lemmes en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Wiktionnaire:Régionalismes sans langue précisée",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais des Philippines",
      "orig": "anglais des Philippines",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais des États-Unis",
      "orig": "anglais des États-Unis",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais du Canada",
      "orig": "anglais du Canada",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais d’Australie",
      "orig": "anglais d’Australie",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Sigle de kindergarten through twelfth grade."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en anglais à traduire",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Wiktionnaire:Régionalismes sans langue précisée",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "RichardHaass, A World in Disarray, Penguins Book, 2018, p. 291",
          "text": "There is no universally accepted answer to this question, but my list would include better education at every level from preschool through K-12 through all forms of postsecondary education qnd in to lifelong learning."
        }
      ],
      "glosses": [
        "M-12, M à 12, système éducatif de la maternelle à la douzième année, c’est-à-dire maternelle, primaire et secondaire."
      ],
      "id": "fr-K-12-en-noun-vIZpjnOO",
      "raw_tags": [
        "Australie",
        "Canada",
        "États-Unis",
        "Philippines"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˌkʰeɪ θɹu ˈtwɛlv\\"
    },
    {
      "ipa": "\\ˌkʰeɪ ˈtwɛlv\\"
    },
    {
      "ipa": "\\ˌkʰeɪ tu ˈtwɛlv\\"
    }
  ],
  "synonyms": [
    {
      "raw_tags": [
        "Australie"
      ],
      "word": "P–12"
    }
  ],
  "word": "K-12"
}

{
  "categories": [
    "Lemmes en anglais",
    "Noms communs en anglais",
    "Wiktionnaire:Régionalismes sans langue précisée",
    "anglais",
    "anglais des Philippines",
    "anglais des États-Unis",
    "anglais du Canada",
    "anglais d’Australie"
  ],
  "etymology_texts": [
    "Sigle de kindergarten through twelfth grade."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Exemples en anglais",
        "Exemples en anglais à traduire",
        "Wiktionnaire:Régionalismes sans langue précisée"
      ],
      "examples": [
        {
          "ref": "RichardHaass, A World in Disarray, Penguins Book, 2018, p. 291",
          "text": "There is no universally accepted answer to this question, but my list would include better education at every level from preschool through K-12 through all forms of postsecondary education qnd in to lifelong learning."
        }
      ],
      "glosses": [
        "M-12, M à 12, système éducatif de la maternelle à la douzième année, c’est-à-dire maternelle, primaire et secondaire."
      ],
      "raw_tags": [
        "Australie",
        "Canada",
        "États-Unis",
        "Philippines"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˌkʰeɪ θɹu ˈtwɛlv\\"
    },
    {
      "ipa": "\\ˌkʰeɪ ˈtwɛlv\\"
    },
    {
      "ipa": "\\ˌkʰeɪ tu ˈtwɛlv\\"
    }
  ],
  "synonyms": [
    {
      "raw_tags": [
        "Australie"
      ],
      "word": "P–12"
    }
  ],
  "word": "K-12"
}