"coach horse" meaning in English

{
  "forms": [
    {
      "form": "coach horses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "coach horse (plural coach horses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A horse that draws a coach."
      ],
      "id": "en-coach_horse-en-noun-VnYojUib",
      "links": [
        [
          "draw",
          "draw"
        ],
        [
          "coach",
          "coach"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Nautical",
          "orig": "en:Nautical",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "5 95",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "4 96",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "6 94",
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "20 80",
          "kind": "lifeform",
          "langcode": "en",
          "name": "Horses",
          "orig": "en:Horses",
          "parents": [
            "Equids",
            "Livestock",
            "Odd-toed ungulates",
            "Agriculture",
            "Animals",
            "Mammals",
            "Applied sciences",
            "Lifeforms",
            "Vertebrates",
            "Sciences",
            "All topics",
            "Life",
            "Chordates",
            "Fundamental",
            "Nature"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A member of the crew who rowed the admiral's barge or a state barge"
      ],
      "id": "en-coach_horse-en-noun-24ua~3EX",
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "crew",
          "crew"
        ],
        [
          "rowed",
          "rowed"
        ],
        [
          "admiral's barge",
          "admiral's barge"
        ],
        [
          "state barge",
          "state barge"
        ]
      ],
      "raw_glosses": [
        "(nautical, slang) A member of the crew who rowed the admiral's barge or a state barge"
      ],
      "tags": [
        "slang"
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-coach horse.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/26/En-au-coach_horse.ogg/En-au-coach_horse.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/26/En-au-coach_horse.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "coach horse"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms with audio links",
    "English terms with non-redundant non-automated sortkeys",
    "en:Horses"
  ],
  "forms": [
    {
      "form": "coach horses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "coach horse (plural coach horses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A horse that draws a coach."
      ],
      "links": [
        [
          "draw",
          "draw"
        ],
        [
          "coach",
          "coach"
        ]
      ]
    },
    {
      "categories": [
        "English slang",
        "en:Nautical"
      ],
      "glosses": [
        "A member of the crew who rowed the admiral's barge or a state barge"
      ],
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "crew",
          "crew"
        ],
        [
          "rowed",
          "rowed"
        ],
        [
          "admiral's barge",
          "admiral's barge"
        ],
        [
          "state barge",
          "state barge"
        ]
      ],
      "raw_glosses": [
        "(nautical, slang) A member of the crew who rowed the admiral's barge or a state barge"
      ],
      "tags": [
        "slang"
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-coach horse.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/26/En-au-coach_horse.ogg/En-au-coach_horse.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/26/En-au-coach_horse.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "coach horse"
}