"legendary Pokémon" meaning in English

{
  "forms": [
    {
      "form": "legendary Pokémon",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "legendary Pokémon"
      },
      "expansion": "legendary Pokémon (plural legendary Pokémon)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "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": "topical",
          "langcode": "en",
          "name": "Pokémon",
          "orig": "en:Pokémon",
          "parents": [
            "Japanese fiction",
            "Nintendo",
            "Fiction",
            "Japan",
            "Video games",
            "Artistic works",
            "Asia",
            "Games",
            "Mass media",
            "Software",
            "Art",
            "Earth",
            "Eurasia",
            "Recreation",
            "Culture",
            "Media",
            "Computing",
            "Nature",
            "Human activity",
            "Society",
            "Communication",
            "Technology",
            "All topics",
            "Human behaviour",
            "Fundamental",
            "Human"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "After catching the legendary Pokémon Mewtwo, nothing could stand between the trainer and her ultimate goal of becoming the greatest trainer of all time.",
          "type": "example"
        }
      ],
      "glosses": [
        "Any of the extremely rare and often very powerful Pokémon specifically designated as such by official sources of Pokémon information."
      ],
      "id": "en-legendary_Pokémon-en-noun--BkmGv~N",
      "links": [
        [
          "Pokémon",
          "Pokémon"
        ]
      ]
    }
  ],
  "word": "legendary Pokémon"
}

{
  "forms": [
    {
      "form": "legendary Pokémon",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "legendary Pokémon"
      },
      "expansion": "legendary Pokémon (plural legendary Pokémon)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms spelled with É",
        "English terms spelled with ◌́",
        "English terms with usage examples",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Pokémon"
      ],
      "examples": [
        {
          "text": "After catching the legendary Pokémon Mewtwo, nothing could stand between the trainer and her ultimate goal of becoming the greatest trainer of all time.",
          "type": "example"
        }
      ],
      "glosses": [
        "Any of the extremely rare and often very powerful Pokémon specifically designated as such by official sources of Pokémon information."
      ],
      "links": [
        [
          "Pokémon",
          "Pokémon"
        ]
      ]
    }
  ],
  "word": "legendary Pokémon"
}