"đường tròn" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "line"
      },
      "expansion": "line",
      "name": "l"
    },
    {
      "args": {
        "1": "en",
        "2": "round"
      },
      "expansion": "round",
      "name": "l"
    },
    {
      "args": {
        "1": "vi",
        "2": "đường",
        "3": "tròn",
        "t1": "line",
        "t2": "round"
      },
      "expansion": "đường (“line”) + tròn (“round”)",
      "name": "af"
    }
  ],
  "etymology_text": "đường (“line”) + tròn (“round”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "đường tròn",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "đường tròn",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "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": "Geometry",
          "orig": "vi:Geometry",
          "parents": [
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a circle"
      ],
      "id": "en-đường_tròn-vi-noun-DbiP54fc",
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "circle",
          "circle#English"
        ]
      ],
      "raw_glosses": [
        "(geometry, as a type of curve) a circle"
      ],
      "raw_tags": [
        "as a type of curve"
      ],
      "related": [
        {
          "word": "đường tròn nội tiếp"
        },
        {
          "word": "đường tròn ngoại tiếp"
        },
        {
          "word": "đường tròn bàng tiếp"
        }
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ʔɗɨəŋ˨˩ t͡ɕɔn˨˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[ʔɗɨəŋ˦˩ ʈɔŋ˦˩]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[ʔɗɨəŋ˨˩ ʈɔŋ˨˩]",
      "tags": [
        "Hồ-Chí-Minh-City"
      ]
    }
  ],
  "word": "đường tròn"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "line"
      },
      "expansion": "line",
      "name": "l"
    },
    {
      "args": {
        "1": "en",
        "2": "round"
      },
      "expansion": "round",
      "name": "l"
    },
    {
      "args": {
        "1": "vi",
        "2": "đường",
        "3": "tròn",
        "t1": "line",
        "t2": "round"
      },
      "expansion": "đường (“line”) + tròn (“round”)",
      "name": "af"
    }
  ],
  "etymology_text": "đường (“line”) + tròn (“round”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "đường tròn",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "đường tròn",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "related": [
    {
      "word": "đường tròn nội tiếp"
    },
    {
      "word": "đường tròn ngoại tiếp"
    },
    {
      "word": "đường tròn bàng tiếp"
    }
  ],
  "senses": [
    {
      "categories": [
        "Vietnamese compound terms",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese nouns",
        "Vietnamese nouns without classifiers",
        "Vietnamese terms with IPA pronunciation",
        "vi:Geometry"
      ],
      "glosses": [
        "a circle"
      ],
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "circle",
          "circle#English"
        ]
      ],
      "raw_glosses": [
        "(geometry, as a type of curve) a circle"
      ],
      "raw_tags": [
        "as a type of curve"
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ʔɗɨəŋ˨˩ t͡ɕɔn˨˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[ʔɗɨəŋ˦˩ ʈɔŋ˦˩]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[ʔɗɨəŋ˨˩ ʈɔŋ˨˩]",
      "tags": [
        "Hồ-Chí-Minh-City"
      ]
    }
  ],
  "word": "đường tròn"
}