"in the throes of" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase",
        "head": ""
      },
      "expansion": "in the throes of",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "in the throes of",
      "name": "en-PP"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "We won't be able to meet next week as we will be in the throes of moving offices. Perhaps the week after will be better.",
          "type": "example"
        },
        {
          "ref": "1960 February, R. C. Riley, “The London-Birmingham services - Part, Present and Future”, in Trains Illustrated, page 101",
          "text": "The inconveniences that must be endured before the modernisation plan can come into action may be seen at Coventry, where since August the station has been in the throes of rebuilding.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Heavily occupied, or busily involved in an important activity."
      ],
      "id": "en-in_the_throes_of-en-prep_phrase-kQRWwPFD",
      "links": [
        [
          "occupied",
          "occupied"
        ],
        [
          "busily",
          "busily"
        ],
        [
          "involved",
          "involved"
        ]
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "busily involved in an important activity",
          "word": "inmitten"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "busily involved in an important activity",
          "word": "mitten in"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "busily involved in an important activity",
          "word": "voll beschäftigt mit"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "busily involved in an important activity",
          "word": "en pleno"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "busily involved in an important activity",
          "word": "inmerso en"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "busily involved in an important activity",
          "word": "sumido en"
        }
      ]
    }
  ],
  "word": "in the throes of"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase",
        "head": ""
      },
      "expansion": "in the throes of",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "in the throes of",
      "name": "en-PP"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English prepositional phrases",
        "English terms with quotations",
        "English terms with usage examples"
      ],
      "examples": [
        {
          "text": "We won't be able to meet next week as we will be in the throes of moving offices. Perhaps the week after will be better.",
          "type": "example"
        },
        {
          "ref": "1960 February, R. C. Riley, “The London-Birmingham services - Part, Present and Future”, in Trains Illustrated, page 101",
          "text": "The inconveniences that must be endured before the modernisation plan can come into action may be seen at Coventry, where since August the station has been in the throes of rebuilding.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Heavily occupied, or busily involved in an important activity."
      ],
      "links": [
        [
          "occupied",
          "occupied"
        ],
        [
          "busily",
          "busily"
        ],
        [
          "involved",
          "involved"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "busily involved in an important activity",
      "word": "inmitten"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "busily involved in an important activity",
      "word": "mitten in"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "busily involved in an important activity",
      "word": "voll beschäftigt mit"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "busily involved in an important activity",
      "word": "en pleno"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "busily involved in an important activity",
      "word": "inmerso en"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "busily involved in an important activity",
      "word": "sumido en"
    }
  ],
  "word": "in the throes of"
}