"primeiro grau" meaning in Portuguese

{
  "etymology_text": "Literally \"first degree\".",
  "forms": [
    {
      "form": "primeiros graus",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "primeiro grau m (plural primeiros graus)",
      "name": "pt-noun"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Brazilian Portuguese",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "pt",
          "name": "Education",
          "orig": "pt:Education",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "95 5",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "96 4",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "96 4",
          "kind": "other",
          "name": "Portuguese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "the education stage equivalent to elementary and junior high"
      ],
      "id": "en-primeiro_grau-pt-noun-32TWk-Cj",
      "links": [
        [
          "education",
          "education"
        ],
        [
          "elementary",
          "elementary school"
        ],
        [
          "junior high",
          "junior high school"
        ]
      ],
      "raw_glosses": [
        "(Brazil, education, dated) the education stage equivalent to elementary and junior high"
      ],
      "synonyms": [
        {
          "word": "ginásio"
        },
        {
          "word": "ensino fundamental"
        }
      ],
      "tags": [
        "Brazil",
        "dated",
        "masculine"
      ],
      "topics": [
        "education"
      ]
    },
    {
      "coordinate_terms": [
        {
          "_dis1": "0 100",
          "word": "segundo grau"
        },
        {
          "_dis1": "0 100",
          "word": "terceiro grau"
        }
      ],
      "glosses": [
        "Used other than figuratively or idiomatically: see primeiro, grau."
      ],
      "id": "en-primeiro_grau-pt-noun-f0VxDp6G",
      "links": [
        [
          "primeiro",
          "primeiro#Portuguese"
        ],
        [
          "grau",
          "grau#Portuguese"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "primeiro grau"
}

{
  "categories": [
    "Pages with 1 entry",
    "Pages with entries",
    "Portuguese countable nouns",
    "Portuguese entries with incorrect language header",
    "Portuguese lemmas",
    "Portuguese masculine nouns",
    "Portuguese multiword terms",
    "Portuguese nouns",
    "Portuguese nouns with red links in their headword lines"
  ],
  "coordinate_terms": [
    {
      "word": "segundo grau"
    },
    {
      "word": "terceiro grau"
    }
  ],
  "etymology_text": "Literally \"first degree\".",
  "forms": [
    {
      "form": "primeiros graus",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "primeiro grau m (plural primeiros graus)",
      "name": "pt-noun"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Brazilian Portuguese",
        "Portuguese dated terms",
        "pt:Education"
      ],
      "glosses": [
        "the education stage equivalent to elementary and junior high"
      ],
      "links": [
        [
          "education",
          "education"
        ],
        [
          "elementary",
          "elementary school"
        ],
        [
          "junior high",
          "junior high school"
        ]
      ],
      "raw_glosses": [
        "(Brazil, education, dated) the education stage equivalent to elementary and junior high"
      ],
      "synonyms": [
        {
          "word": "ginásio"
        },
        {
          "word": "ensino fundamental"
        }
      ],
      "tags": [
        "Brazil",
        "dated",
        "masculine"
      ],
      "topics": [
        "education"
      ]
    },
    {
      "glosses": [
        "Used other than figuratively or idiomatically: see primeiro, grau."
      ],
      "links": [
        [
          "primeiro",
          "primeiro#Portuguese"
        ],
        [
          "grau",
          "grau#Portuguese"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "primeiro grau"
}