"grade school" meaning in English

{
  "etymology_text": "In contrast to high schools, the subsequent secondary school type, classes of this kind of school do not have typical nicknames.\nIn a grade school all classes are simply enumerated 1st to 8th grade (called form or year in British English).\nIn a high school, on the other hand, school year groups are in everyday parlance referred to as freshman/sophomore/junior/senior year.",
  "forms": [
    {
      "form": "grade schools",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "grade school (plural grade schools)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Canadian 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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Philippine English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Schools",
          "orig": "en:Schools",
          "parents": [
            "Buildings",
            "Education",
            "Buildings and structures",
            "Society",
            "Architecture",
            "All topics",
            "Applied sciences",
            "Art",
            "Fundamental",
            "Sciences",
            "Culture"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "gradeschooler"
        }
      ],
      "glosses": [
        "Elementary school; primary school."
      ],
      "id": "en-grade_school-en-noun-K8LavA9s",
      "links": [
        [
          "education",
          "education"
        ],
        [
          "Elementary school",
          "elementary school"
        ],
        [
          "primary school",
          "primary school"
        ]
      ],
      "raw_glosses": [
        "(US, Philippines, rarely Canada, education) Elementary school; primary school."
      ],
      "tags": [
        "Canada",
        "Philippines",
        "US",
        "rare"
      ],
      "topics": [
        "education"
      ]
    }
  ],
  "word": "grade school"
}

{
  "derived": [
    {
      "word": "gradeschooler"
    }
  ],
  "etymology_text": "In contrast to high schools, the subsequent secondary school type, classes of this kind of school do not have typical nicknames.\nIn a grade school all classes are simply enumerated 1st to 8th grade (called form or year in British English).\nIn a high school, on the other hand, school year groups are in everyday parlance referred to as freshman/sophomore/junior/senior year.",
  "forms": [
    {
      "form": "grade schools",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "grade school (plural grade schools)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "American English",
        "Canadian English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "Philippine English",
        "en:Schools"
      ],
      "glosses": [
        "Elementary school; primary school."
      ],
      "links": [
        [
          "education",
          "education"
        ],
        [
          "Elementary school",
          "elementary school"
        ],
        [
          "primary school",
          "primary school"
        ]
      ],
      "raw_glosses": [
        "(US, Philippines, rarely Canada, education) Elementary school; primary school."
      ],
      "tags": [
        "Canada",
        "Philippines",
        "US",
        "rare"
      ],
      "topics": [
        "education"
      ]
    }
  ],
  "word": "grade school"
}