"Atlantic Canada" meaning in English

{
  "head_templates": [
    {
      "args": {},
      "expansion": "Atlantic Canada",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "en",
          "name": "Regions of Canada",
          "orig": "en:Regions of Canada",
          "parents": [
            "Regions",
            "Places",
            "Political subdivisions",
            "Names",
            "Polities",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of Atlantic provinces."
      ],
      "hyponyms": [
        {
          "word": "Maritime provinces"
        },
        {
          "word": "Maritimes"
        }
      ],
      "id": "en-Atlantic_Canada-en-name-cHebxx4p",
      "links": [
        [
          "Atlantic provinces",
          "Atlantic provinces#English"
        ]
      ],
      "related": [
        {
          "word": "Western Canada"
        },
        {
          "word": "Central Canada"
        },
        {
          "word": "Eastern Canada"
        },
        {
          "word": "Northern Canada"
        }
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "Atlantic provinces"
        }
      ],
      "wikipedia": [
        "Atlantic Canada"
      ]
    }
  ],
  "word": "Atlantic Canada"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "Atlantic Canada",
      "name": "en-proper noun"
    }
  ],
  "hyponyms": [
    {
      "word": "Maritime provinces"
    },
    {
      "word": "Maritimes"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "related": [
    {
      "word": "Western Canada"
    },
    {
      "word": "Central Canada"
    },
    {
      "word": "Eastern Canada"
    },
    {
      "word": "Northern Canada"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English uncountable nouns",
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      ],
      "glosses": [
        "Synonym of Atlantic provinces."
      ],
      "links": [
        [
          "Atlantic provinces",
          "Atlantic provinces#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "Atlantic provinces"
        }
      ],
      "wikipedia": [
        "Atlantic Canada"
      ]
    }
  ],
  "word": "Atlantic Canada"
}