"V2" meaning in English

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  "etymology_text": "From velocity, where this is the second important velocity.",
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  "lang_code": "en",
  "pos": "noun",
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      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Aviation",
          "orig": "en:Aviation",
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            "Aeronautics",
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      ],
      "coordinate_terms": [
        {
          "word": "V1"
        },
        {
          "word": "VD"
        },
        {
          "word": "VMO"
        },
        {
          "word": "VNE"
        },
        {
          "word": "VR"
        },
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          "sense": "Vs",
          "word": "Vs0"
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        {
          "sense": "Vx",
          "word": "Vxse"
        },
        {
          "sense": "Vy",
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      ],
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        "The airspeed at which an aircraft leaves the runway on takeoff."
      ],
      "id": "en-V2-en-noun-F~6pxfKl",
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          "aviation",
          "aviation"
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        [
          "airspeed",
          "airspeed"
        ],
        [
          "aircraft",
          "aircraft"
        ],
        [
          "runway",
          "runway"
        ],
        [
          "takeoff",
          "takeoff"
        ]
      ],
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        "(aviation) The airspeed at which an aircraft leaves the runway on takeoff."
      ],
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        "uncountable"
      ],
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        "aeronautics",
        "aerospace",
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  "word": "V2"
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  "etymology_text": "V- + 2",
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    {
      "form": "V2s",
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        "plural"
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  "lang_code": "en",
  "pos": "noun",
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        {
          "word": "V-twin"
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          "name": "Automotive",
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            "Applied sciences",
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      "id": "en-V2-en-noun-~7WGZVOx",
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        "(automotive, engineering) Alternative form of V-twin"
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        "automotive",
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        "transport",
        "vehicles"
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  ],
  "word": "V2"
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  "etymology_number": 3,
  "forms": [
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      "form": "V2s",
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  "pos": "noun",
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          "text": "Mr. A. J. Somers writes to say that the \"V2\" which caused the scrapping of \"J17\" 0-6-0, No. 8200, was not of the 2-6-2 type, but a considerably more destructive German rocket!",
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          "V-2#English"
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  ],
  "word": "V2"
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      "word": "V1"
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    {
      "word": "VD"
    },
    {
      "word": "VMO"
    },
    {
      "word": "VNE"
    },
    {
      "word": "VR"
    },
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      "word": "Vs0"
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  "lang_code": "en",
  "pos": "noun",
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        "The airspeed at which an aircraft leaves the runway on takeoff."
      ],
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        [
          "aviation",
          "aviation"
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          "airspeed",
          "airspeed"
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          "aircraft",
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        ],
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          "runway",
          "runway"
        ],
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          "takeoff"
        ]
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        "(aviation) The airspeed at which an aircraft leaves the runway on takeoff."
      ],
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        "uncountable"
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        "aeronautics",
        "aerospace",
        "aviation",
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        "physical-sciences"
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  "word": "V2"
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        "(automotive, engineering) Alternative form of V-twin"
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  ],
  "word": "V2"
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  "word": "V2"
}