"upper reaches" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "The highest or most northerly extremes of something."
      ],
      "id": "en-upper_reaches-en-noun-Nh9orjdP",
      "links": [
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          "translation hub",
          "Appendix:Glossary#translation_hub"
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      "qualifier": "This entry is a translation hub.",
      "raw_glosses": [
        "(This entry is a translation hub.) The highest or most northerly extremes of something."
      ],
      "related": [
        {
          "word": "middle reaches"
        },
        {
          "word": "lower reaches"
        }
      ],
      "tags": [
        "uncountable"
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      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "shàngyóu",
          "sense": "the part of a river that is near where it begins",
          "word": "上游"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "shàngliú",
          "sense": "the part of a river that is near where it begins",
          "word": "上流"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "the part of a river that is near where it begins",
          "word": "yläjuoksu"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "the part of a river that is near where it begins",
          "tags": [
            "masculine"
          ],
          "word": "Oberlauf"
        },
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "the part of a river that is near where it begins",
          "word": "felső szakasz/folyás"
        },
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "the part of a river that is near where it begins",
          "tags": [
            "figuratively"
          ],
          "word": "felső szint"
        },
        {
          "alt": "じょうりゅう",
          "code": "ja",
          "lang": "Japanese",
          "roman": "jōryū",
          "sense": "the part of a river that is near where it begins",
          "word": "上流"
        },
        {
          "alt": "かわかみ",
          "code": "ja",
          "lang": "Japanese",
          "roman": "kawakami",
          "sense": "the part of a river that is near where it begins",
          "word": "川上"
        },
        {
          "alt": "みなかみ",
          "code": "ja",
          "lang": "Japanese",
          "roman": "minakami",
          "sense": "the part of a river that is near where it begins",
          "word": "水上"
        },
        {
          "code": "ko",
          "lang": "Korean",
          "roman": "sangnyu",
          "sense": "the part of a river that is near where it begins",
          "word": "상류"
        },
        {
          "code": "ko",
          "lang": "Korean",
          "roman": "murwi",
          "sense": "the part of a river that is near where it begins",
          "word": "물위"
        },
        {
          "code": "vi",
          "lang": "Vietnamese",
          "sense": "the part of a river that is near where it begins",
          "word": "thượng lưu"
        },
        {
          "code": "vi",
          "lang": "Vietnamese",
          "sense": "the part of a river that is near where it begins",
          "word": "thượng nguồn"
        }
      ]
    }
  ],
  "word": "upper reaches"
}

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      "expansion": "upper reaches (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "middle reaches"
    },
    {
      "word": "lower reaches"
    }
  ],
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      "glosses": [
        "The highest or most northerly extremes of something."
      ],
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          "Appendix:Glossary#translation_hub"
        ]
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      "qualifier": "This entry is a translation hub.",
      "raw_glosses": [
        "(This entry is a translation hub.) The highest or most northerly extremes of something."
      ],
      "tags": [
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  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "shàngyóu",
      "sense": "the part of a river that is near where it begins",
      "word": "上游"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "shàngliú",
      "sense": "the part of a river that is near where it begins",
      "word": "上流"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "the part of a river that is near where it begins",
      "word": "yläjuoksu"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "the part of a river that is near where it begins",
      "tags": [
        "masculine"
      ],
      "word": "Oberlauf"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "the part of a river that is near where it begins",
      "word": "felső szakasz/folyás"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "the part of a river that is near where it begins",
      "tags": [
        "figuratively"
      ],
      "word": "felső szint"
    },
    {
      "alt": "じょうりゅう",
      "code": "ja",
      "lang": "Japanese",
      "roman": "jōryū",
      "sense": "the part of a river that is near where it begins",
      "word": "上流"
    },
    {
      "alt": "かわかみ",
      "code": "ja",
      "lang": "Japanese",
      "roman": "kawakami",
      "sense": "the part of a river that is near where it begins",
      "word": "川上"
    },
    {
      "alt": "みなかみ",
      "code": "ja",
      "lang": "Japanese",
      "roman": "minakami",
      "sense": "the part of a river that is near where it begins",
      "word": "水上"
    },
    {
      "code": "ko",
      "lang": "Korean",
      "roman": "sangnyu",
      "sense": "the part of a river that is near where it begins",
      "word": "상류"
    },
    {
      "code": "ko",
      "lang": "Korean",
      "roman": "murwi",
      "sense": "the part of a river that is near where it begins",
      "word": "물위"
    },
    {
      "code": "vi",
      "lang": "Vietnamese",
      "sense": "the part of a river that is near where it begins",
      "word": "thượng lưu"
    },
    {
      "code": "vi",
      "lang": "Vietnamese",
      "sense": "the part of a river that is near where it begins",
      "word": "thượng nguồn"
    }
  ],
  "word": "upper reaches"
}