"leading light" meaning in English

{
  "forms": [
    {
      "form": "leading lights",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "leading light (plural leading lights)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "57 43",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "Stephen Hawking is a leading light in physics, people say he's the greatest physicist since Einstein."
        }
      ],
      "glosses": [
        "An acclaimed expert, one of the foremost experts, a luminary."
      ],
      "id": "en-leading_light-en-noun-vfy5Db90",
      "links": [
        [
          "acclaimed",
          "acclaimed"
        ],
        [
          "foremost",
          "foremost"
        ],
        [
          "luminary",
          "luminary"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) An acclaimed expert, one of the foremost experts, a luminary."
      ],
      "tags": [
        "idiomatic"
      ],
      "translations": [
        {
          "_dis1": "95 5",
          "code": "mi",
          "lang": "Maori",
          "sense": "an acclaimed expert",
          "word": "matariki"
        }
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Nautical",
          "orig": "en:Nautical",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Navigation",
          "orig": "en:Navigation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A light that helps to guide vessels into a port."
      ],
      "id": "en-leading_light-en-noun-kd2vNqdv",
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "navigation",
          "navigation"
        ],
        [
          "light",
          "light"
        ],
        [
          "port",
          "port"
        ]
      ],
      "qualifier": "navigation",
      "raw_glosses": [
        "(nautical, navigation) A light that helps to guide vessels into a port."
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-leading light.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/4/4e/En-au-leading_light.ogg/En-au-leading_light.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/4/4e/En-au-leading_light.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "leading light"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms with audio links"
  ],
  "forms": [
    {
      "form": "leading lights",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "leading light (plural leading lights)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English idioms"
      ],
      "examples": [
        {
          "text": "Stephen Hawking is a leading light in physics, people say he's the greatest physicist since Einstein."
        }
      ],
      "glosses": [
        "An acclaimed expert, one of the foremost experts, a luminary."
      ],
      "links": [
        [
          "acclaimed",
          "acclaimed"
        ],
        [
          "foremost",
          "foremost"
        ],
        [
          "luminary",
          "luminary"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) An acclaimed expert, one of the foremost experts, a luminary."
      ],
      "tags": [
        "idiomatic"
      ]
    },
    {
      "categories": [
        "en:Nautical",
        "en:Navigation"
      ],
      "glosses": [
        "A light that helps to guide vessels into a port."
      ],
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "navigation",
          "navigation"
        ],
        [
          "light",
          "light"
        ],
        [
          "port",
          "port"
        ]
      ],
      "qualifier": "navigation",
      "raw_glosses": [
        "(nautical, navigation) A light that helps to guide vessels into a port."
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-leading light.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/4/4e/En-au-leading_light.ogg/En-au-leading_light.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/4/4e/En-au-leading_light.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "translations": [
    {
      "code": "mi",
      "lang": "Maori",
      "sense": "an acclaimed expert",
      "word": "matariki"
    }
  ],
  "word": "leading light"
}