"cổ thụ" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "古樹"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "古",
        "2": "old",
        "3": "樹",
        "4": "tree"
      },
      "expansion": "Sino-Vietnamese word from 古 (“old”) and 樹 (“tree”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 古 (“old”) and 樹 (“tree”).",
  "forms": [
    {
      "form": "cây",
      "tags": [
        "classifier"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "cổ thụ",
      "name": "head"
    },
    {
      "args": {
        "cls": "cây"
      },
      "expansion": "(classifier cây) cổ thụ",
      "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": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sino-Vietnamese words",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sino-Vietnamese words with uncreated Han etymology",
          "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 classified by cây",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "an old tree; an ancient tree"
      ],
      "id": "en-cổ_thụ-vi-noun-LCG55Jod",
      "links": [
        [
          "old",
          "old"
        ],
        [
          "tree",
          "tree"
        ],
        [
          "ancient",
          "ancient"
        ]
      ],
      "raw_glosses": [
        "(literary) an old tree; an ancient tree"
      ],
      "tags": [
        "literary"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ko˧˩ tʰu˧˨ʔ]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[kow˧˨ tʰʊw˨˩ʔ]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[kow˨˩˦ tʰʊw˨˩˨]",
      "note": "Saigon"
    }
  ],
  "word": "cổ thụ"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "古樹"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "古",
        "2": "old",
        "3": "樹",
        "4": "tree"
      },
      "expansion": "Sino-Vietnamese word from 古 (“old”) and 樹 (“tree”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 古 (“old”) and 樹 (“tree”).",
  "forms": [
    {
      "form": "cây",
      "tags": [
        "classifier"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "cổ thụ",
      "name": "head"
    },
    {
      "args": {
        "cls": "cây"
      },
      "expansion": "(classifier cây) cổ thụ",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Sino-Vietnamese words",
        "Sino-Vietnamese words with uncreated Han etymology",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese literary terms",
        "Vietnamese nouns",
        "Vietnamese nouns classified by cây",
        "Vietnamese terms with IPA pronunciation"
      ],
      "glosses": [
        "an old tree; an ancient tree"
      ],
      "links": [
        [
          "old",
          "old"
        ],
        [
          "tree",
          "tree"
        ],
        [
          "ancient",
          "ancient"
        ]
      ],
      "raw_glosses": [
        "(literary) an old tree; an ancient tree"
      ],
      "tags": [
        "literary"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ko˧˩ tʰu˧˨ʔ]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[kow˧˨ tʰʊw˨˩ʔ]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[kow˨˩˦ tʰʊw˨˩˨]",
      "note": "Saigon"
    }
  ],
  "word": "cổ thụ"
}