"time study" meaning in English

{
  "forms": [
    {
      "form": "time studies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "time study (plural time studies)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "time and motion study"
        }
      ],
      "glosses": [
        "A direct and continuous observation of a task, using a timekeeping device to record the time taken to accomplish the task."
      ],
      "id": "en-time_study-en-noun-wbBf9ZyA",
      "links": [
        [
          "direct",
          "direct"
        ],
        [
          "continuous",
          "continuous"
        ],
        [
          "observation",
          "observation"
        ],
        [
          "task",
          "task"
        ]
      ],
      "raw_glosses": [
        "(Taylorism) A direct and continuous observation of a task, using a timekeeping device to record the time taken to accomplish the task."
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "study",
          "word": "aikatutkimus"
        }
      ],
      "wikipedia": [
        "Time and motion study#Time study"
      ]
    }
  ],
  "word": "time study"
}

{
  "derived": [
    {
      "word": "time and motion study"
    }
  ],
  "forms": [
    {
      "form": "time studies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "time study (plural time studies)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns"
      ],
      "glosses": [
        "A direct and continuous observation of a task, using a timekeeping device to record the time taken to accomplish the task."
      ],
      "links": [
        [
          "direct",
          "direct"
        ],
        [
          "continuous",
          "continuous"
        ],
        [
          "observation",
          "observation"
        ],
        [
          "task",
          "task"
        ]
      ],
      "raw_glosses": [
        "(Taylorism) A direct and continuous observation of a task, using a timekeeping device to record the time taken to accomplish the task."
      ],
      "wikipedia": [
        "Time and motion study#Time study"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "study",
      "word": "aikatutkimus"
    }
  ],
  "word": "time study"
}