"first grader" meaning in English

{
  "forms": [
    {
      "form": "first graders",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "first grader (plural first graders)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Lithuanian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Education",
          "orig": "en:Education",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "second grader"
        },
        {
          "word": "third grader"
        },
        {
          "word": "fourth grader"
        },
        {
          "word": "fifth grader"
        },
        {
          "word": "sixth grader"
        },
        {
          "word": "seventh grader"
        },
        {
          "word": "eighth grader"
        },
        {
          "word": "ninth grader"
        },
        {
          "word": "tenth grader"
        },
        {
          "word": "eleventh grader"
        },
        {
          "word": "twelfth grader"
        },
        {
          "word": "thirteenth grader"
        }
      ],
      "glosses": [
        "A pupil who is in first grade."
      ],
      "hyponyms": [
        {
          "word": "gradeschooler"
        }
      ],
      "id": "en-first_grader-en-noun-X7L5S9P1",
      "links": [
        [
          "education",
          "education"
        ],
        [
          "pupil",
          "pupil"
        ],
        [
          "first grade",
          "first grade"
        ]
      ],
      "raw_glosses": [
        "(US, education) A pupil who is in first grade."
      ],
      "synonyms": [
        {
          "tags": [
            "Canada"
          ],
          "word": "grade oner"
        },
        {
          "word": "1st grader"
        },
        {
          "word": "1st-grader"
        },
        {
          "word": "first-grader"
        }
      ],
      "tags": [
        "US"
      ],
      "topics": [
        "education"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "pupil in 1st grade",
          "word": "ensiluokkalainen"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "pupil in 1st grade",
          "word": "ekaluokkalainen"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "pupil in 1st grade",
          "tags": [
            "masculine"
          ],
          "word": "Erstklässler"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "pupil in 1st grade",
          "tags": [
            "feminine"
          ],
          "word": "Erstklässlerin"
        },
        {
          "code": "lt",
          "lang": "Lithuanian",
          "sense": "pupil in 1st grade",
          "tags": [
            "masculine"
          ],
          "word": "pirmokas"
        },
        {
          "code": "lt",
          "lang": "Lithuanian",
          "sense": "pupil in 1st grade",
          "tags": [
            "masculine",
            "plural"
          ],
          "word": "pirmokai"
        },
        {
          "code": "lt",
          "lang": "Lithuanian",
          "sense": "pupil in 1st grade",
          "tags": [
            "feminine"
          ],
          "word": "pirmokė"
        },
        {
          "code": "lt",
          "lang": "Lithuanian",
          "sense": "pupil in 1st grade",
          "tags": [
            "feminine",
            "plural"
          ],
          "word": "pirmokės"
        }
      ]
    }
  ],
  "word": "first grader"
}

{
  "coordinate_terms": [
    {
      "word": "second grader"
    },
    {
      "word": "third grader"
    },
    {
      "word": "fourth grader"
    },
    {
      "word": "fifth grader"
    },
    {
      "word": "sixth grader"
    },
    {
      "word": "seventh grader"
    },
    {
      "word": "eighth grader"
    },
    {
      "word": "ninth grader"
    },
    {
      "word": "tenth grader"
    },
    {
      "word": "eleventh grader"
    },
    {
      "word": "twelfth grader"
    },
    {
      "word": "thirteenth grader"
    }
  ],
  "forms": [
    {
      "form": "first graders",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "first grader (plural first graders)",
      "name": "en-noun"
    }
  ],
  "hyponyms": [
    {
      "word": "gradeschooler"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "American English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with German translations",
        "Terms with Lithuanian translations",
        "en:Education",
        "en:People"
      ],
      "glosses": [
        "A pupil who is in first grade."
      ],
      "links": [
        [
          "education",
          "education"
        ],
        [
          "pupil",
          "pupil"
        ],
        [
          "first grade",
          "first grade"
        ]
      ],
      "raw_glosses": [
        "(US, education) A pupil who is in first grade."
      ],
      "tags": [
        "US"
      ],
      "topics": [
        "education"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "Canada"
      ],
      "word": "grade oner"
    },
    {
      "word": "1st grader"
    },
    {
      "word": "1st-grader"
    },
    {
      "word": "first-grader"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "pupil in 1st grade",
      "word": "ensiluokkalainen"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "pupil in 1st grade",
      "word": "ekaluokkalainen"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "pupil in 1st grade",
      "tags": [
        "masculine"
      ],
      "word": "Erstklässler"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "pupil in 1st grade",
      "tags": [
        "feminine"
      ],
      "word": "Erstklässlerin"
    },
    {
      "code": "lt",
      "lang": "Lithuanian",
      "sense": "pupil in 1st grade",
      "tags": [
        "masculine"
      ],
      "word": "pirmokas"
    },
    {
      "code": "lt",
      "lang": "Lithuanian",
      "sense": "pupil in 1st grade",
      "tags": [
        "masculine",
        "plural"
      ],
      "word": "pirmokai"
    },
    {
      "code": "lt",
      "lang": "Lithuanian",
      "sense": "pupil in 1st grade",
      "tags": [
        "feminine"
      ],
      "word": "pirmokė"
    },
    {
      "code": "lt",
      "lang": "Lithuanian",
      "sense": "pupil in 1st grade",
      "tags": [
        "feminine",
        "plural"
      ],
      "word": "pirmokės"
    }
  ],
  "word": "first grader"
}