"瞭若指掌" meaning in 漢語

{
  "categories": [
    {
      "kind": "other",
      "name": "官話成語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "官話詞元",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "帶「指」的漢語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "帶「掌」的漢語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "帶「瞭」的漢語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "帶「若」的漢語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有1個詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有國際音標的漢語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "漢語成語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "漢語詞元",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "了若指掌",
      "tags": [
        "Simplified Chinese"
      ]
    },
    {
      "form": "了若指掌",
      "tags": [
        "Traditional Chinese"
      ]
    }
  ],
  "lang": "漢語",
  "lang_code": "zh",
  "pos": "phrase",
  "senses": [
    {
      "form_of": [
        {
          "word": "了如指掌"
        }
      ],
      "glosses": [
        "瞭如指掌／了如指掌 (liǎorúzhǐzhǎng)之同義詞"
      ],
      "id": "zh-瞭若指掌-zh-phrase-sx4EEehF",
      "tags": [
        "form-of"
      ]
    }
  ],
  "sounds": [
    {
      "tags": [
        "Mandarin",
        "Pinyin"
      ],
      "zh_pron": "liǎoruòzhǐzhǎng"
    },
    {
      "tags": [
        "Mandarin",
        "Bopomofo"
      ],
      "zh_pron": "ㄌㄧㄠˇ ㄖㄨㄛˋ ㄓˇ ㄓㄤˇ"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Pinyin"
      ],
      "zh_pron": "liǎoruòzhǐzhǎng [實際讀音：liǎoruòzhízhǎng]"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Bopomofo"
      ],
      "zh_pron": "ㄌㄧㄠˇ ㄖㄨㄛˋ ㄓˇ ㄓㄤˇ"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Tongyong-Pinyin"
      ],
      "zh_pron": "liǎoruòjhǐhjhǎng"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Wade–Giles"
      ],
      "zh_pron": "liao³-jo⁴-chih³-chang³"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Yale"
      ],
      "zh_pron": "lyǎu-rwò-jř-jǎng"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Gwoyeu-Romatsyh"
      ],
      "zh_pron": "leauruohjyyjaang"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Palladius"
      ],
      "zh_pron": "ляожочжичжан (ljaožočžičžan)"
    },
    {
      "ipa": "/li̯ɑʊ̯²¹⁴⁻²¹ ʐu̯ɔ⁵¹ ʈ͡ʂʐ̩²¹⁴⁻³⁵ ʈ͡ʂɑŋ²¹⁴⁻²¹⁽⁴⁾/",
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Sinological-IPA"
      ]
    }
  ],
  "tags": [
    "idiomatic"
  ],
  "word": "瞭若指掌"
}

{
  "categories": [
    "官話成語",
    "官話詞元",
    "帶「指」的漢語詞",
    "帶「掌」的漢語詞",
    "帶「瞭」的漢語詞",
    "帶「若」的漢語詞",
    "有1個詞條的頁面",
    "有國際音標的漢語詞",
    "有詞條的頁面",
    "漢語成語",
    "漢語詞元"
  ],
  "forms": [
    {
      "form": "了若指掌",
      "tags": [
        "Simplified Chinese"
      ]
    },
    {
      "form": "了若指掌",
      "tags": [
        "Traditional Chinese"
      ]
    }
  ],
  "lang": "漢語",
  "lang_code": "zh",
  "pos": "phrase",
  "senses": [
    {
      "form_of": [
        {
          "word": "了如指掌"
        }
      ],
      "glosses": [
        "瞭如指掌／了如指掌 (liǎorúzhǐzhǎng)之同義詞"
      ],
      "tags": [
        "form-of"
      ]
    }
  ],
  "sounds": [
    {
      "tags": [
        "Mandarin",
        "Pinyin"
      ],
      "zh_pron": "liǎoruòzhǐzhǎng"
    },
    {
      "tags": [
        "Mandarin",
        "Bopomofo"
      ],
      "zh_pron": "ㄌㄧㄠˇ ㄖㄨㄛˋ ㄓˇ ㄓㄤˇ"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Pinyin"
      ],
      "zh_pron": "liǎoruòzhǐzhǎng [實際讀音：liǎoruòzhízhǎng]"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Bopomofo"
      ],
      "zh_pron": "ㄌㄧㄠˇ ㄖㄨㄛˋ ㄓˇ ㄓㄤˇ"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Tongyong-Pinyin"
      ],
      "zh_pron": "liǎoruòjhǐhjhǎng"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Wade–Giles"
      ],
      "zh_pron": "liao³-jo⁴-chih³-chang³"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Yale"
      ],
      "zh_pron": "lyǎu-rwò-jř-jǎng"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Gwoyeu-Romatsyh"
      ],
      "zh_pron": "leauruohjyyjaang"
    },
    {
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Palladius"
      ],
      "zh_pron": "ляожочжичжан (ljaožočžičžan)"
    },
    {
      "ipa": "/li̯ɑʊ̯²¹⁴⁻²¹ ʐu̯ɔ⁵¹ ʈ͡ʂʐ̩²¹⁴⁻³⁵ ʈ͡ʂɑŋ²¹⁴⁻²¹⁽⁴⁾/",
      "tags": [
        "Mandarin",
        "Standard Chinese",
        "Sinological-IPA"
      ]
    }
  ],
  "tags": [
    "idiomatic"
  ],
  "word": "瞭若指掌"
}