"person-hour" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "person",
        "3": "hour"
      },
      "expansion": "person + hour",
      "name": "compound"
    }
  ],
  "etymology_text": "Compound of person + hour, although, as with any such unit of measure (e.g., ton-miles, newton metres), the mathematical relationship of multiplication is simultaneously involved: X persons working during Y hours = X × Y = Z person-hours.",
  "forms": [
    {
      "form": "person-hours",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "person-hour (plural person-hours)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Holonyms: person-day, man-day < person-month, man-month < person-year, man-year"
        },
        {
          "text": "Coordinate term: machine-hour"
        }
      ],
      "glosses": [
        "The amount of work that can be done by one person in one hour."
      ],
      "id": "en-person-hour-en-noun-4EAkaLTT",
      "links": [
        [
          "work",
          "work"
        ],
        [
          "person",
          "person"
        ],
        [
          "hour",
          "hour"
        ]
      ],
      "synonyms": [
        {
          "word": "man-hour"
        }
      ]
    }
  ],
  "word": "person-hour"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "person",
        "3": "hour"
      },
      "expansion": "person + hour",
      "name": "compound"
    }
  ],
  "etymology_text": "Compound of person + hour, although, as with any such unit of measure (e.g., ton-miles, newton metres), the mathematical relationship of multiplication is simultaneously involved: X persons working during Y hours = X × Y = Z person-hours.",
  "forms": [
    {
      "form": "person-hours",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "person-hour (plural person-hours)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "Holonyms: person-day, man-day < person-month, man-month < person-year, man-year"
        },
        {
          "text": "Coordinate term: machine-hour"
        }
      ],
      "glosses": [
        "The amount of work that can be done by one person in one hour."
      ],
      "links": [
        [
          "work",
          "work"
        ],
        [
          "person",
          "person"
        ],
        [
          "hour",
          "hour"
        ]
      ],
      "synonyms": [
        {
          "word": "man-hour"
        }
      ]
    }
  ],
  "word": "person-hour"
}