"living legend" meaning in English

{
  "forms": [
    {
      "form": "living legends",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "living legend (plural living legends)",
      "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"
        },
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          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
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          "parents": [],
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          "kind": "other",
          "name": "Pages with entries",
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        },
        {
          "kind": "other",
          "name": "Terms with Polish translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A person who is alive and has achieved legendary status."
      ],
      "id": "en-living_legend-en-noun-uZVN~Cfs",
      "links": [
        [
          "alive",
          "alive"
        ],
        [
          "legendary",
          "legendary"
        ]
      ],
      "synonyms": [
        {
          "word": "legend in one's own lifetime"
        },
        {
          "word": "legend in one's own time"
        }
      ],
      "translations": [
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "person who is alive and has achieved legendary status",
          "tags": [
            "feminine"
          ],
          "word": "żywa legenda"
        }
      ]
    }
  ],
  "word": "living legend"
}

{
  "forms": [
    {
      "form": "living legends",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "living legend (plural living legends)",
      "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",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Polish translations"
      ],
      "glosses": [
        "A person who is alive and has achieved legendary status."
      ],
      "links": [
        [
          "alive",
          "alive"
        ],
        [
          "legendary",
          "legendary"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "legend in one's own lifetime"
    },
    {
      "word": "legend in one's own time"
    }
  ],
  "translations": [
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "person who is alive and has achieved legendary status",
      "tags": [
        "feminine"
      ],
      "word": "żywa legenda"
    }
  ],
  "word": "living legend"
}