"chính yếu" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "正要"
      },
      "expansion": "正要",
      "name": "m"
    },
    {
      "args": {
        "1": "vi",
        "2": "正",
        "t": "main"
      },
      "expansion": "正 (“main”)",
      "name": "m"
    },
    {
      "args": {
        "1": "vi",
        "2": "要",
        "t": "vital"
      },
      "expansion": "要 (“vital”)",
      "name": "m"
    },
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "正",
        "2": "main",
        "3": "要",
        "4": "vital"
      },
      "expansion": "Sino-Vietnamese word from 正要, composed of 正 (“main”) and 要 (“vital”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 正要, composed of 正 (“main”) and 要 (“vital”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "adjective",
        "3": "",
        "4": "",
        "5": "",
        "6": "",
        "head": "",
        "tr": ""
      },
      "expansion": "chính yếu",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "chính yếu",
      "name": "vi-adj"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "adj",
  "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"
        }
      ],
      "glosses": [
        "primary; main; essential"
      ],
      "id": "en-chính_yếu-vi-adj-lXR3Acri",
      "links": [
        [
          "primary",
          "primary#English"
        ],
        [
          "main",
          "main#English"
        ],
        [
          "essential",
          "essential#English"
        ]
      ],
      "synonyms": [
        {
          "word": "chánh yếu"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕïŋ˧˦ ʔiəw˧˦]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[t͡ɕɨn˦˧˥ ʔiw˨˩˦]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[cɨn˦˥ ʔiw˦˥]",
      "tags": [
        "Hồ-Chí-Minh-City"
      ]
    }
  ],
  "word": "chính yếu"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "正要"
      },
      "expansion": "正要",
      "name": "m"
    },
    {
      "args": {
        "1": "vi",
        "2": "正",
        "t": "main"
      },
      "expansion": "正 (“main”)",
      "name": "m"
    },
    {
      "args": {
        "1": "vi",
        "2": "要",
        "t": "vital"
      },
      "expansion": "要 (“vital”)",
      "name": "m"
    },
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "正",
        "2": "main",
        "3": "要",
        "4": "vital"
      },
      "expansion": "Sino-Vietnamese word from 正要, composed of 正 (“main”) and 要 (“vital”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 正要, composed of 正 (“main”) and 要 (“vital”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "adjective",
        "3": "",
        "4": "",
        "5": "",
        "6": "",
        "head": "",
        "tr": ""
      },
      "expansion": "chính yếu",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "chính yếu",
      "name": "vi-adj"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Sino-Vietnamese words",
        "Vietnamese adjectives",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese terms with IPA pronunciation"
      ],
      "glosses": [
        "primary; main; essential"
      ],
      "links": [
        [
          "primary",
          "primary#English"
        ],
        [
          "main",
          "main#English"
        ],
        [
          "essential",
          "essential#English"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕïŋ˧˦ ʔiəw˧˦]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[t͡ɕɨn˦˧˥ ʔiw˨˩˦]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[cɨn˦˥ ʔiw˦˥]",
      "tags": [
        "Hồ-Chí-Minh-City"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "chánh yếu"
    }
  ],
  "word": "chính yếu"
}