"rubro" meaning in Spanish

{
  "forms": [
    {
      "form": "rubros",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "rubro m (plural rubros)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "72 28",
          "kind": "topical",
          "langcode": "es",
          "name": "Reds",
          "orig": "es:Reds",
          "parents": [
            "Colors",
            "Light",
            "Vision",
            "Energy",
            "Senses",
            "Nature",
            "Perception",
            "All topics",
            "Body",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "red"
      ],
      "id": "en-rubro-es-noun-sfUaUR8d",
      "links": [
        [
          "red",
          "red"
        ]
      ],
      "tags": [
        "masculine"
      ]
    },
    {
      "categories": [
        {
          "_dis": "4 96",
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "title, heading"
      ],
      "id": "en-rubro-es-noun-g1w3Hb4t",
      "links": [
        [
          "title",
          "title"
        ],
        [
          "heading",
          "heading"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "rubro"
}

{
  "categories": [
    "Pages with 4 entries",
    "Pages with entries",
    "Spanish countable nouns",
    "Spanish entries with incorrect language header",
    "Spanish lemmas",
    "Spanish masculine nouns",
    "Spanish nouns",
    "es:Reds"
  ],
  "forms": [
    {
      "form": "rubros",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "rubro m (plural rubros)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "red"
      ],
      "links": [
        [
          "red",
          "red"
        ]
      ],
      "tags": [
        "masculine"
      ]
    },
    {
      "glosses": [
        "title, heading"
      ],
      "links": [
        [
          "title",
          "title"
        ],
        [
          "heading",
          "heading"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "rubro"
}