"降水" meaning in Japanese

{
  "forms": [
    {
      "form": "降水",
      "ruby": [
        [
          "降",
          "こう"
        ],
        [
          "水",
          "すい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kōsui",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "kausui",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "かうすい",
      "roman": "kausui",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "こうすい",
        "hhira": "かうすい"
      },
      "expansion": "降(こう)水(すい) • (kōsui) ^(←かうすい (kausui)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "english": "volume of precipitation",
          "roman": "kōsuiryō",
          "ruby": [
            [
              "降水量",
              "こうすいりょう"
            ]
          ],
          "word": "降水量"
        },
        {
          "english": "drought",
          "roman": "mukōsui",
          "ruby": [
            [
              "無降水",
              "むこうすい"
            ]
          ],
          "word": "無降水"
        },
        {
          "english": "chance of precipitation",
          "roman": "kōsui kakuritsu",
          "ruby": [
            [
              "降水確率",
              "こうすいかくりつ"
            ]
          ],
          "word": "降水確率"
        }
      ],
      "glosses": [
        "fallen rain, rainfall, precipitation"
      ],
      "id": "en-降水-ja-noun-DX62393V",
      "links": [
        [
          "rainfall",
          "rainfall"
        ],
        [
          "precipitation",
          "precipitation"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "こーすい"
    },
    {
      "ipa": "[ko̞ːsɨi]"
    }
  ],
  "word": "降水"
}

{
  "derived": [
    {
      "english": "volume of precipitation",
      "roman": "kōsuiryō",
      "ruby": [
        [
          "降水量",
          "こうすいりょう"
        ]
      ],
      "word": "降水量"
    },
    {
      "english": "drought",
      "roman": "mukōsui",
      "ruby": [
        [
          "無降水",
          "むこうすい"
        ]
      ],
      "word": "無降水"
    },
    {
      "english": "chance of precipitation",
      "roman": "kōsui kakuritsu",
      "ruby": [
        [
          "降水確率",
          "こうすいかくりつ"
        ]
      ],
      "word": "降水確率"
    }
  ],
  "forms": [
    {
      "form": "降水",
      "ruby": [
        [
          "降",
          "こう"
        ],
        [
          "水",
          "すい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kōsui",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "kausui",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "かうすい",
      "roman": "kausui",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "こうすい",
        "hhira": "かうすい"
      },
      "expansion": "降(こう)水(すい) • (kōsui) ^(←かうすい (kausui)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms spelled with first grade kanji",
        "Japanese terms spelled with sixth grade kanji",
        "Japanese terms with 2 kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with redundant sortkeys",
        "Pages with 3 entries",
        "Pages with entries"
      ],
      "glosses": [
        "fallen rain, rainfall, precipitation"
      ],
      "links": [
        [
          "rainfall",
          "rainfall"
        ],
        [
          "precipitation",
          "precipitation"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "こーすい"
    },
    {
      "ipa": "[ko̞ːsɨi]"
    }
  ],
  "word": "降水"
}

{
  "called_from": "parser/304",
  "msg": "HTML tag <span> not properly closed",
  "path": [
    "降水"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "降水",
  "trace": "started on line 2, detected on line 2"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "降水"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "降水",
  "trace": ""
}