"vapor trail" meaning in English

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      "expansion": "vapor + trail",
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  ],
  "etymology_text": "From vapor + trail.",
  "forms": [
    {
      "form": "vapor trails",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {},
      "expansion": "vapor trail (plural vapor trails)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      ],
      "glosses": [
        "A contrail"
      ],
      "id": "en-vapor_trail-en-noun-J2kecoat",
      "links": [
        [
          "contrail",
          "contrail"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "UK"
          ],
          "word": "vapour trail"
        }
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "contrail",
          "word": "凝結尾跡"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "níngjiéwěijì",
          "sense": "contrail",
          "word": "凝结尾迹"
        },
        {
          "alt": "ひこうきぐも",
          "code": "ja",
          "lang": "Japanese",
          "roman": "hikōkigumo",
          "sense": "contrail",
          "word": "飛行機雲"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "contrail",
          "word": "estela de condensación"
        }
      ]
    }
  ],
  "word": "vapor trail"
}

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        "2": "vapor",
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      "expansion": "vapor + trail",
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  ],
  "etymology_text": "From vapor + trail.",
  "forms": [
    {
      "form": "vapor trails",
      "tags": [
        "plural"
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  ],
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      "expansion": "vapor trail (plural vapor trails)",
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  "pos": "noun",
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        "A contrail"
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          "contrail",
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  "synonyms": [
    {
      "tags": [
        "UK"
      ],
      "word": "vapour trail"
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "contrail",
      "word": "凝結尾跡"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "níngjiéwěijì",
      "sense": "contrail",
      "word": "凝结尾迹"
    },
    {
      "alt": "ひこうきぐも",
      "code": "ja",
      "lang": "Japanese",
      "roman": "hikōkigumo",
      "sense": "contrail",
      "word": "飛行機雲"
    },
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      "code": "es",
      "lang": "Spanish",
      "sense": "contrail",
      "word": "estela de condensación"
    }
  ],
  "word": "vapor trail"
}