"ro-ro" meaning in English

{
  "forms": [
    {
      "form": "ro-ros",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "ro-ro (countable and uncountable, plural ro-ros)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "roll-on roll-off"
        }
      ],
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Nautical",
          "orig": "en:Nautical",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Transport",
          "orig": "en:Transport",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "97 3",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "97 3",
          "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": "96 4",
          "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": "94 6",
          "kind": "topical",
          "langcode": "en",
          "name": "Watercraft",
          "orig": "en:Watercraft",
          "parents": [
            "Nautical",
            "Vehicles",
            "Transport",
            "Machines",
            "All topics",
            "Technology",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Abbreviation of roll-on roll-off."
      ],
      "id": "en-ro-ro-en-noun-14t3LkwK",
      "links": [
        [
          "transport",
          "transport"
        ],
        [
          "nautical",
          "nautical"
        ],
        [
          "roll-on roll-off",
          "roll-on roll-off#English"
        ]
      ],
      "raw_glosses": [
        "(transport, nautical) Abbreviation of roll-on roll-off."
      ],
      "related": [
        {
          "_dis1": "100 0",
          "word": "lo-lo"
        }
      ],
      "synonyms": [
        {
          "_dis1": "100 0",
          "word": "roro"
        },
        {
          "_dis1": "100 0",
          "word": "ro/ro"
        },
        {
          "_dis1": "100 0",
          "word": "Ro-Ro"
        },
        {
          "_dis1": "100 0",
          "word": "RoRo"
        },
        {
          "_dis1": "100 0",
          "word": "Ro/Ro"
        },
        {
          "_dis1": "100 0",
          "word": "RO-RO"
        },
        {
          "_dis1": "100 0",
          "word": "RORO"
        },
        {
          "_dis1": "100 0",
          "word": "RO/RO"
        }
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "countable",
        "uncountable"
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    },
    {
      "glosses": [
        "An individual vehicle of this kind."
      ],
      "id": "en-ro-ro-en-noun--ef6lHOS",
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "wikipedia": [
    "ro-ro"
  ],
  "word": "ro-ro"
}

{
  "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 non-redundant non-automated sortkeys",
    "English uncountable nouns",
    "en:Watercraft"
  ],
  "forms": [
    {
      "form": "ro-ros",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "ro-ro (countable and uncountable, plural ro-ros)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "lo-lo"
    }
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "roll-on roll-off"
        }
      ],
      "categories": [
        "English abbreviations",
        "en:Nautical",
        "en:Transport"
      ],
      "glosses": [
        "Abbreviation of roll-on roll-off."
      ],
      "links": [
        [
          "transport",
          "transport"
        ],
        [
          "nautical",
          "nautical"
        ],
        [
          "roll-on roll-off",
          "roll-on roll-off#English"
        ]
      ],
      "raw_glosses": [
        "(transport, nautical) Abbreviation of roll-on roll-off."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "countable",
        "uncountable"
      ],
      "topics": [
        "nautical",
        "transport"
      ]
    },
    {
      "glosses": [
        "An individual vehicle of this kind."
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "roro"
    },
    {
      "word": "ro/ro"
    },
    {
      "word": "Ro-Ro"
    },
    {
      "word": "RoRo"
    },
    {
      "word": "Ro/Ro"
    },
    {
      "word": "RO-RO"
    },
    {
      "word": "RORO"
    },
    {
      "word": "RO/RO"
    }
  ],
  "wikipedia": [
    "ro-ro"
  ],
  "word": "ro-ro"
}