"red rider" meaning in English

{
  "etymology_text": "A reference to the Four Horsemen of the Apocalypse, as the rider of a red horse is War.",
  "forms": [
    {
      "form": "the red rider",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun",
        "head": "the red rider"
      },
      "expansion": "the red rider",
      "name": "head"
    }
  ],
  "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": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Personifications",
          "orig": "en:Personifications",
          "parents": [
            "Narratology",
            "Drama",
            "Literature",
            "Theater",
            "Culture",
            "Entertainment",
            "Writing",
            "Art",
            "Society",
            "Human behaviour",
            "Language",
            "All topics",
            "Human",
            "Communication",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "english": "Conquest",
          "word": "white rider"
        },
        {
          "english": "Famine",
          "word": "black rider"
        },
        {
          "english": "Death",
          "word": "pale rider"
        }
      ],
      "glosses": [
        "War, one of the Four Horsemen of the Apocalypse."
      ],
      "id": "en-red_rider-en-noun-T7cFO7BR",
      "raw_glosses": [
        "(idiomatic) War, one of the Four Horsemen of the Apocalypse."
      ],
      "synonyms": [
        {
          "word": "Red Rider"
        }
      ],
      "tags": [
        "idiomatic"
      ],
      "wikipedia": [
        "Four Horsemen of the Apocalypse"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-red rider.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/1/15/En-au-red_rider.ogg/En-au-red_rider.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/1/15/En-au-red_rider.ogg"
    }
  ],
  "word": "red rider"
}

{
  "coordinate_terms": [
    {
      "english": "Conquest",
      "word": "white rider"
    },
    {
      "english": "Famine",
      "word": "black rider"
    },
    {
      "english": "Death",
      "word": "pale rider"
    }
  ],
  "etymology_text": "A reference to the Four Horsemen of the Apocalypse, as the rider of a red horse is War.",
  "forms": [
    {
      "form": "the red rider",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun",
        "head": "the red rider"
      },
      "expansion": "the red rider",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Personifications"
      ],
      "glosses": [
        "War, one of the Four Horsemen of the Apocalypse."
      ],
      "raw_glosses": [
        "(idiomatic) War, one of the Four Horsemen of the Apocalypse."
      ],
      "tags": [
        "idiomatic"
      ],
      "wikipedia": [
        "Four Horsemen of the Apocalypse"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-red rider.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/1/15/En-au-red_rider.ogg/En-au-red_rider.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/1/15/En-au-red_rider.ogg"
    }
  ],
  "synonyms": [
    {
      "word": "Red Rider"
    }
  ],
  "word": "red rider"
}