"hố đen" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "hố",
        "3": "đen",
        "lit": "black dug hole",
        "t1": "dug pit/hole",
        "t2": "black"
      },
      "expansion": "hố (“dug pit/hole”) + đen (“black”), literally “black dug hole”",
      "name": "af"
    }
  ],
  "etymology_text": "hố (“dug pit/hole”) + đen (“black”), literally “black dug hole”. Compare lỗ đen (literally “black punctured hole”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "hố đen",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "hố đen",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Vietnamese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Vietnamese nouns without classifiers",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "vi",
          "name": "Black holes",
          "orig": "vi:Black holes",
          "parents": [
            "Astronomy",
            "Astrophysics",
            "Gravity",
            "Relativity",
            "Sciences",
            "Space",
            "Physics",
            "Acceleration",
            "Mechanics",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of lỗ đen (“a black hole”) (celestial body)"
      ],
      "id": "en-hố_đen-vi-noun-5KbjxKI0",
      "links": [
        [
          "lỗ đen",
          "lỗ đen#Vietnamese"
        ],
        [
          "black hole",
          "black hole#English"
        ]
      ],
      "synonyms": [
        {
          "extra": "(“a black hole”) (celestial body)",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "lỗ đen"
        }
      ],
      "wikipedia": [
        "vi:hố đen"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ho˧˦ ʔɗɛn˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[how˨˩˦ ʔɗɛŋ˧˧]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[how˦˥ ʔɗɛŋ˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "hố đen"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "hố",
        "3": "đen",
        "lit": "black dug hole",
        "t1": "dug pit/hole",
        "t2": "black"
      },
      "expansion": "hố (“dug pit/hole”) + đen (“black”), literally “black dug hole”",
      "name": "af"
    }
  ],
  "etymology_text": "hố (“dug pit/hole”) + đen (“black”), literally “black dug hole”. Compare lỗ đen (literally “black punctured hole”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "hố đen",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "hố đen",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Vietnamese compound terms",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese nouns",
        "Vietnamese nouns without classifiers",
        "Vietnamese terms with IPA pronunciation",
        "vi:Black holes"
      ],
      "glosses": [
        "Synonym of lỗ đen (“a black hole”) (celestial body)"
      ],
      "links": [
        [
          "lỗ đen",
          "lỗ đen#Vietnamese"
        ],
        [
          "black hole",
          "black hole#English"
        ]
      ],
      "synonyms": [
        {
          "extra": "(“a black hole”) (celestial body)",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "lỗ đen"
        }
      ],
      "wikipedia": [
        "vi:hố đen"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ho˧˦ ʔɗɛn˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[how˨˩˦ ʔɗɛŋ˧˧]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[how˦˥ ʔɗɛŋ˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "hố đen"
}