"off duty" meaning in English

{
  "antonyms": [
    {
      "word": "on duty"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase"
      },
      "expansion": "off duty",
      "name": "head"
    }
  ],
  "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": "The policeman was off duty but had his gun.",
          "type": "example"
        },
        {
          "text": "I won't be going off duty until about six.",
          "type": "example"
        },
        {
          "ref": "1944, Philip MacDonald, Action in Arabia, spoken by Matthew Reed (Robert Armstrong)",
          "text": "Officially I think you're crazy. Unofficially I'm off duty.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Not engaged in an assigned task, duty or occupation."
      ],
      "id": "en-off_duty-en-prep_phrase-NxhoYfVk",
      "links": [
        [
          "engaged",
          "engaged"
        ],
        [
          "assigned",
          "assigned"
        ],
        [
          "task",
          "task"
        ],
        [
          "duty",
          "duty"
        ],
        [
          "occupation",
          "occupation"
        ]
      ],
      "synonyms": [
        {
          "word": "off-duty"
        }
      ]
    }
  ],
  "word": "off duty"
}

{
  "antonyms": [
    {
      "word": "on duty"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase"
      },
      "expansion": "off duty",
      "name": "head"
    }
  ],
  "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": "The policeman was off duty but had his gun.",
          "type": "example"
        },
        {
          "text": "I won't be going off duty until about six.",
          "type": "example"
        },
        {
          "ref": "1944, Philip MacDonald, Action in Arabia, spoken by Matthew Reed (Robert Armstrong)",
          "text": "Officially I think you're crazy. Unofficially I'm off duty.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Not engaged in an assigned task, duty or occupation."
      ],
      "links": [
        [
          "engaged",
          "engaged"
        ],
        [
          "assigned",
          "assigned"
        ],
        [
          "task",
          "task"
        ],
        [
          "duty",
          "duty"
        ],
        [
          "occupation",
          "occupation"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "off-duty"
    }
  ],
  "word": "off duty"
}