"hot water bag" meaning in English

{
  "forms": [
    {
      "form": "hot water bags",
      "tags": [
        "plural"
      ]
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  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hot water bag (plural hot water bags)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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      "examples": [
        {
          "ref": "1887, Oliver Wendell Holmes, chapter 1, in Our Hundred Days in Europe, Boston: Houghton Mifflin, page 20:",
          "text": "Nothing is more comfortable, nothing, I should say, more indispensable, than a hot-water bag,—or rather, two hot-water bags; for they will burst sometimes, as I found out, and a passenger who has become intimate with one of these warm bosom friends feels its loss almost as if it were human.",
          "type": "quote"
        },
        {
          "ref": "1931, Ethel Lina White, chapter 5, in Put Out the Light, London: Wark Lock:",
          "text": "Presently her stiff limbs relaxed in the gentle heat from her hot water bags.",
          "type": "quote"
        },
        {
          "ref": "1957, Neville Shute, On the Beach, New York: William Morrow:",
          "text": "“I think he’s got flu, Mummy. He’s frightfully tired, for one thing. He’ll have to go to bed directly we get home. Could you light a fire in his room, and put a hot-water bag in the bed? […]”",
          "type": "quote"
        }
      ],
      "glosses": [
        "A hot water bottle."
      ],
      "id": "en-hot_water_bag-en-noun-V0EWxgHA",
      "links": [
        [
          "hot water bottle",
          "hot water bottle"
        ]
      ],
      "raw_glosses": [
        "(dated) A hot water bottle."
      ],
      "synonyms": [
        {
          "word": "hot-water bag"
        },
        {
          "word": "hotwater bag"
        }
      ],
      "tags": [
        "dated"
      ]
    }
  ],
  "word": "hot water bag"
}

{
  "forms": [
    {
      "form": "hot water bags",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "expansion": "hot water bag (plural hot water bags)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
        "English dated terms",
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        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
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      ],
      "examples": [
        {
          "ref": "1887, Oliver Wendell Holmes, chapter 1, in Our Hundred Days in Europe, Boston: Houghton Mifflin, page 20:",
          "text": "Nothing is more comfortable, nothing, I should say, more indispensable, than a hot-water bag,—or rather, two hot-water bags; for they will burst sometimes, as I found out, and a passenger who has become intimate with one of these warm bosom friends feels its loss almost as if it were human.",
          "type": "quote"
        },
        {
          "ref": "1931, Ethel Lina White, chapter 5, in Put Out the Light, London: Wark Lock:",
          "text": "Presently her stiff limbs relaxed in the gentle heat from her hot water bags.",
          "type": "quote"
        },
        {
          "ref": "1957, Neville Shute, On the Beach, New York: William Morrow:",
          "text": "“I think he’s got flu, Mummy. He’s frightfully tired, for one thing. He’ll have to go to bed directly we get home. Could you light a fire in his room, and put a hot-water bag in the bed? […]”",
          "type": "quote"
        }
      ],
      "glosses": [
        "A hot water bottle."
      ],
      "links": [
        [
          "hot water bottle",
          "hot water bottle"
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      ],
      "raw_glosses": [
        "(dated) A hot water bottle."
      ],
      "tags": [
        "dated"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "hot-water bag"
    },
    {
      "word": "hotwater bag"
    }
  ],
  "word": "hot water bag"
}