"blind as a bat" meaning in All languages combined

{
  "categories": [
    {
      "kind": "other",
      "name": "英語形容詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語無比較級形容詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語詞元",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "英语",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "glosses": [
        "瞎的，啥都看不见的"
      ],
      "id": "zh-blind_as_a_bat-en-adj-sHTJw1B4",
      "raw_tags": [
        "明喻"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-blind as a bat.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/5/56/En-au-blind_as_a_bat.ogg/En-au-blind_as_a_bat.ogg.mp3",
      "ogg_url": "https://commons.wikimedia.org/wiki/Special:FilePath/En-au-blind as a bat.ogg",
      "raw_tags": [
        "（澳洲）音频"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "blind as a beetle"
    },
    {
      "word": "blind as a mole"
    },
    {
      "word": "blind as an owl"
    }
  ],
  "tags": [
    "not-comparable"
  ],
  "word": "blind as a bat"
}

{
  "categories": [
    "英語形容詞",
    "英語無比較級形容詞",
    "英語詞元"
  ],
  "lang": "英语",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "glosses": [
        "瞎的，啥都看不见的"
      ],
      "raw_tags": [
        "明喻"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-blind as a bat.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/5/56/En-au-blind_as_a_bat.ogg/En-au-blind_as_a_bat.ogg.mp3",
      "ogg_url": "https://commons.wikimedia.org/wiki/Special:FilePath/En-au-blind as a bat.ogg",
      "raw_tags": [
        "（澳洲）音频"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "blind as a beetle"
    },
    {
      "word": "blind as a mole"
    },
    {
      "word": "blind as an owl"
    }
  ],
  "tags": [
    "not-comparable"
  ],
  "word": "blind as a bat"
}