"whispering gallery" meaning in English

{
  "forms": [
    {
      "form": "whispering galleries",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "whispering gallery (plural whispering galleries)",
      "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": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Spanish translations",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "whispering-gallery mode"
        },
        {
          "word": "whispering-gallery wave"
        }
      ],
      "glosses": [
        "A gallery or dome constructed so that even quiet sounds travel a long distance."
      ],
      "id": "en-whispering_gallery-en-noun-I~Qr1ImZ",
      "links": [
        [
          "gallery",
          "gallery"
        ],
        [
          "dome",
          "dome"
        ],
        [
          "construct",
          "construct"
        ],
        [
          "quiet",
          "quiet"
        ],
        [
          "sound",
          "sound"
        ],
        [
          "travel",
          "travel"
        ],
        [
          "distance",
          "distance"
        ]
      ],
      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "Translations",
          "tags": [
            "feminine"
          ],
          "word": "galerie des murmures"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "tags": [
            "neuter"
          ],
          "word": "Flüstergewölbe"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "tags": [
            "masculine"
          ],
          "word": "gabinete de secretos"
        }
      ],
      "wikipedia": [
        "whispering gallery"
      ]
    }
  ],
  "word": "whispering gallery"
}

{
  "derived": [
    {
      "word": "whispering-gallery mode"
    },
    {
      "word": "whispering-gallery wave"
    }
  ],
  "forms": [
    {
      "form": "whispering galleries",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "whispering gallery (plural whispering galleries)",
      "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 French translations",
        "Terms with German translations",
        "Terms with Spanish translations",
        "Translation table header lacks gloss"
      ],
      "glosses": [
        "A gallery or dome constructed so that even quiet sounds travel a long distance."
      ],
      "links": [
        [
          "gallery",
          "gallery"
        ],
        [
          "dome",
          "dome"
        ],
        [
          "construct",
          "construct"
        ],
        [
          "quiet",
          "quiet"
        ],
        [
          "sound",
          "sound"
        ],
        [
          "travel",
          "travel"
        ],
        [
          "distance",
          "distance"
        ]
      ],
      "wikipedia": [
        "whispering gallery"
      ]
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "galerie des murmures"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "tags": [
        "neuter"
      ],
      "word": "Flüstergewölbe"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "tags": [
        "masculine"
      ],
      "word": "gabinete de secretos"
    }
  ],
  "word": "whispering gallery"
}