"hora extra" meaning in Spanish

{
  "forms": [
    {
      "form": "horas extras",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "horas extra",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "+",
        "pl2": "horas extra"
      },
      "expansion": "hora extra f (plural horas extras or horas extra)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "75 25",
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "74 26",
          "kind": "other",
          "name": "Spanish nouns with multiple plurals",
          "parents": [
            "Nouns with multiple plurals",
            "Nouns by inflection type",
            "Nouns",
            "Lemmas"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "overtime (working time outside of one’s regular hours)"
      ],
      "id": "en-hora_extra-es-noun-3EAJsxOH",
      "links": [
        [
          "overtime",
          "overtime"
        ]
      ],
      "tags": [
        "feminine"
      ]
    },
    {
      "glosses": [
        "overtime (extra pay for work outside one’s regular hours)"
      ],
      "id": "en-hora_extra-es-noun-0DAdsAUQ",
      "links": [
        [
          "overtime",
          "overtime"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "hora extra"
}

{
  "categories": [
    "Spanish countable nouns",
    "Spanish entries with incorrect language header",
    "Spanish feminine nouns",
    "Spanish lemmas",
    "Spanish multiword terms",
    "Spanish nouns",
    "Spanish nouns with multiple plurals"
  ],
  "forms": [
    {
      "form": "horas extras",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "horas extra",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "+",
        "pl2": "horas extra"
      },
      "expansion": "hora extra f (plural horas extras or horas extra)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "overtime (working time outside of one’s regular hours)"
      ],
      "links": [
        [
          "overtime",
          "overtime"
        ]
      ],
      "tags": [
        "feminine"
      ]
    },
    {
      "glosses": [
        "overtime (extra pay for work outside one’s regular hours)"
      ],
      "links": [
        [
          "overtime",
          "overtime"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "hora extra"
}