"man-month" meaning in English

{
  "forms": [
    {
      "form": "man-months",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "man-month (plural man-months)",
      "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"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Units of measure",
          "orig": "en:Units of measure",
          "parents": [
            "Metrology",
            "Quantity",
            "Applied sciences",
            "Mathematics",
            "Sciences",
            "Formal sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1980, Richard S. Palais, “Message from the Chairman”, in TUGboat, volume 1, number 1, page 5",
          "text": "Experience seems to indicate that developing such a TeX interface for a new output device takes on the order of one man-month.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "One person's working time for a month, or the equivalent, used as a measure of how much work or labor is required or consumed to perform some task."
      ],
      "id": "en-man-month-en-noun-LN~NvQiV",
      "links": [
        [
          "work",
          "work"
        ],
        [
          "labor",
          "labor"
        ],
        [
          "task",
          "task"
        ]
      ],
      "related": [
        {
          "word": "man-day"
        },
        {
          "word": "man-hour"
        },
        {
          "word": "man-year"
        }
      ],
      "synonyms": [
        {
          "word": "person-month"
        }
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "amount of work",
          "word": "henkilötyökuukausi"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "amount of work",
          "tags": [
            "masculine"
          ],
          "word": "mois-homme"
        },
        {
          "code": "ja",
          "lang": "Japanese",
          "roman": "ningetsu",
          "sense": "amount of work",
          "word": "人月"
        }
      ]
    }
  ],
  "word": "man-month"
}

{
  "forms": [
    {
      "form": "man-months",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "man-month (plural man-months)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "man-day"
    },
    {
      "word": "man-hour"
    },
    {
      "word": "man-year"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "en:Units of measure"
      ],
      "examples": [
        {
          "ref": "1980, Richard S. Palais, “Message from the Chairman”, in TUGboat, volume 1, number 1, page 5",
          "text": "Experience seems to indicate that developing such a TeX interface for a new output device takes on the order of one man-month.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "One person's working time for a month, or the equivalent, used as a measure of how much work or labor is required or consumed to perform some task."
      ],
      "links": [
        [
          "work",
          "work"
        ],
        [
          "labor",
          "labor"
        ],
        [
          "task",
          "task"
        ]
      ],
      "synonyms": [
        {
          "word": "person-month"
        }
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "amount of work",
      "word": "henkilötyökuukausi"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "amount of work",
      "tags": [
        "masculine"
      ],
      "word": "mois-homme"
    },
    {
      "code": "ja",
      "lang": "Japanese",
      "roman": "ningetsu",
      "sense": "amount of work",
      "word": "人月"
    }
  ],
  "word": "man-month"
}