"thượng sách" meaning in Vietnamese

{
  "etymology_templates": [
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      "args": {
        "1": "vi",
        "2": "上策"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "上",
        "2": "upper",
        "3": "策",
        "4": "plan"
      },
      "expansion": "Sino-Vietnamese word from 上策, composed of 上 (“upper”) and 策 (“plan”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 上策, composed of 上 (“upper”) and 策 (“plan”)",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "thượng sách",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "thượng sách",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "antonyms": [
        {
          "word": "hạ sách"
        }
      ],
      "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": "Vietnamese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "the best/optimal plan/course of action"
      ],
      "id": "en-thượng_sách-vi-noun-hoGugYwu",
      "links": [
        [
          "best",
          "best"
        ],
        [
          "optimal",
          "optimal"
        ],
        [
          "plan",
          "plan"
        ],
        [
          "course of action",
          "course of action"
        ]
      ],
      "raw_glosses": [
        "(literary) the best/optimal plan/course of action"
      ],
      "tags": [
        "literary"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[tʰɨəŋ˧˨ʔ sajk̟̚˧˦]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[tʰɨəŋ˨˩ʔ ʂat̚˦˧˥]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[tʰɨəŋ˨˩ʔ sat̚˦˧˥]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[tʰɨəŋ˨˩˨ ʂat̚˦˥]",
      "note": "Saigon"
    },
    {
      "ipa": "[tʰɨəŋ˨˩˨ sat̚˦˥]",
      "note": "Saigon"
    }
  ],
  "word": "thượng sách"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "上策"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "上",
        "2": "upper",
        "3": "策",
        "4": "plan"
      },
      "expansion": "Sino-Vietnamese word from 上策, composed of 上 (“upper”) and 策 (“plan”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 上策, composed of 上 (“upper”) and 策 (“plan”)",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "thượng sách",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "thượng sách",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "antonyms": [
        {
          "word": "hạ sách"
        }
      ],
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Sino-Vietnamese words",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese literary terms",
        "Vietnamese nouns",
        "Vietnamese terms with IPA pronunciation"
      ],
      "glosses": [
        "the best/optimal plan/course of action"
      ],
      "links": [
        [
          "best",
          "best"
        ],
        [
          "optimal",
          "optimal"
        ],
        [
          "plan",
          "plan"
        ],
        [
          "course of action",
          "course of action"
        ]
      ],
      "raw_glosses": [
        "(literary) the best/optimal plan/course of action"
      ],
      "tags": [
        "literary"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[tʰɨəŋ˧˨ʔ sajk̟̚˧˦]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[tʰɨəŋ˨˩ʔ ʂat̚˦˧˥]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[tʰɨəŋ˨˩ʔ sat̚˦˧˥]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[tʰɨəŋ˨˩˨ ʂat̚˦˥]",
      "note": "Saigon"
    },
    {
      "ipa": "[tʰɨəŋ˨˩˨ sat̚˦˥]",
      "note": "Saigon"
    }
  ],
  "word": "thượng sách"
}