"thoái hoá" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "退",
        "2": "to back off",
        "3": "化",
        "4": "to transform"
      },
      "expansion": "Sino-Vietnamese word from 退化, composed of 退 (“to back off”) and 化 (“to transform”)",
      "name": "vi-etym-sino"
    },
    {
      "args": {
        "1": "vi",
        "2": "ja",
        "3": "退化",
        "tr": "taika"
      },
      "expansion": "Japanese 退化 (taika)",
      "name": "bor"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 退化, composed of 退 (“to back off”) and 化 (“to transform”), from Japanese 退化 (taika).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "verb",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "thoái hoá",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "thoái hoá",
      "name": "vi-verb"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Sino-Vietnamese words",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Vietnamese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "cervical degenerative disease",
          "text": "thoái hoá đốt sống cổ",
          "type": "example"
        },
        {
          "english": "moral decline",
          "text": "thoái hoá phẩm chất đạo đức",
          "type": "example"
        }
      ],
      "glosses": [
        "to degenerate, decline or regress"
      ],
      "id": "en-thoái_hoá-vi-verb-0EobkzeD",
      "links": [
        [
          "degenerate",
          "degenerate#English"
        ],
        [
          "decline",
          "decline#English"
        ],
        [
          "regress",
          "regress#English"
        ]
      ],
      "related": [
        {
          "word": "tiến hoá"
        },
        {
          "word": "tiến thoái lưỡng nan"
        }
      ],
      "synonyms": [
        {
          "word": "thoái hóa"
        },
        {
          "word": "thoái-hóa"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[tʰwaːj˧˦ hwaː˧˦]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[tʰwaːj˨˩˦ hwaː˨˩˦]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[tʰ⁽ʷ⁾aːj˦˥ waː˦˥]",
      "note": "Saigon"
    }
  ],
  "word": "thoái hoá"
}

{
  "etymology_templates": [
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      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "退",
        "2": "to back off",
        "3": "化",
        "4": "to transform"
      },
      "expansion": "Sino-Vietnamese word from 退化, composed of 退 (“to back off”) and 化 (“to transform”)",
      "name": "vi-etym-sino"
    },
    {
      "args": {
        "1": "vi",
        "2": "ja",
        "3": "退化",
        "tr": "taika"
      },
      "expansion": "Japanese 退化 (taika)",
      "name": "bor"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 退化, composed of 退 (“to back off”) and 化 (“to transform”), from Japanese 退化 (taika).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "verb",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "thoái hoá",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "thoái hoá",
      "name": "vi-verb"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "verb",
  "related": [
    {
      "word": "tiến hoá"
    },
    {
      "word": "tiến thoái lưỡng nan"
    }
  ],
  "senses": [
    {
      "categories": [
        "Sino-Vietnamese words",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese terms borrowed from Japanese",
        "Vietnamese terms derived from Japanese",
        "Vietnamese terms with IPA pronunciation",
        "Vietnamese terms with usage examples",
        "Vietnamese verbs"
      ],
      "examples": [
        {
          "english": "cervical degenerative disease",
          "text": "thoái hoá đốt sống cổ",
          "type": "example"
        },
        {
          "english": "moral decline",
          "text": "thoái hoá phẩm chất đạo đức",
          "type": "example"
        }
      ],
      "glosses": [
        "to degenerate, decline or regress"
      ],
      "links": [
        [
          "degenerate",
          "degenerate#English"
        ],
        [
          "decline",
          "decline#English"
        ],
        [
          "regress",
          "regress#English"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[tʰwaːj˧˦ hwaː˧˦]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[tʰwaːj˨˩˦ hwaː˨˩˦]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[tʰ⁽ʷ⁾aːj˦˥ waː˦˥]",
      "note": "Saigon"
    }
  ],
  "synonyms": [
    {
      "word": "thoái hóa"
    },
    {
      "word": "thoái-hóa"
    }
  ],
  "word": "thoái hoá"
}