"hải đường" meaning in Vietnamese

{
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        "2": "海棠"
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        "1": "vi",
        "2": "Sino-Vietnamese words"
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      "expansion": "",
      "name": "categorize"
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      "args": {
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      "expansion": "Sino-Vietnamese word from 海棠",
      "name": "vi-etym-sino"
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  "etymology_text": "Sino-Vietnamese word from 海棠.",
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      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
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      "expansion": "hải đường",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "hải đường",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "73 27",
          "kind": "other",
          "name": "Sino-Vietnamese words",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Chinese flowering crabapple (Malus spectabilis)"
      ],
      "id": "en-hải_đường-vi-noun-7zd-Otij",
      "links": [
        [
          "crabapple",
          "crabapple"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "26 74",
          "kind": "other",
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          "_dis": "21 79",
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        },
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          "_dis": "26 74",
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          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "19 81",
          "kind": "lifeform",
          "langcode": "vi",
          "name": "Fruits",
          "orig": "vi:Fruits",
          "parents": [
            "Foods",
            "Plants",
            "Eating",
            "Food and drink",
            "Lifeforms",
            "Human behaviour",
            "All topics",
            "Life",
            "Human",
            "Fundamental",
            "Nature"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "11 89",
          "kind": "lifeform",
          "langcode": "vi",
          "name": "Trees",
          "orig": "vi:Trees",
          "parents": [
            "Plants",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "the genus Malus"
      ],
      "id": "en-hải_đường-vi-noun-KZBKYvg8",
      "links": [
        [
          "genus",
          "genus"
        ],
        [
          "Malus",
          "Malus"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[haːj˧˩ ʔɗɨəŋ˨˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[haːj˧˨ ʔɗɨəŋ˦˩]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[haːj˨˩˦ ʔɗɨəŋ˨˩]",
      "note": "Saigon"
    }
  ],
  "word": "hải đường"
}

{
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    "vi:Trees"
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        "3": "",
        "4": "",
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      "expansion": "hải đường",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "hải đường",
      "name": "vi-noun"
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  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Entries using missing taxonomic name (species)"
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      "glosses": [
        "Chinese flowering crabapple (Malus spectabilis)"
      ],
      "links": [
        [
          "crabapple",
          "crabapple"
        ]
      ]
    },
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        "the genus Malus"
      ],
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          "genus"
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          "Malus",
          "Malus"
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  ],
  "sounds": [
    {
      "ipa": "[haːj˧˩ ʔɗɨəŋ˨˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[haːj˧˨ ʔɗɨəŋ˦˩]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[haːj˨˩˦ ʔɗɨəŋ˨˩]",
      "note": "Saigon"
    }
  ],
  "word": "hải đường"
}