"tuna melt" meaning in English

{
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        "2": "tuna",
        "3": "melt"
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      "expansion": "tuna + melt",
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  ],
  "etymology_text": "From tuna + melt; derived from melt sandwich.",
  "forms": [
    {
      "form": "tuna melts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {},
      "expansion": "tuna melt (plural tuna melts)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      ],
      "glosses": [
        "A sandwich with tuna and a layer of melted cheese in it, usually eaten hot."
      ],
      "id": "en-tuna_melt-en-noun-U5jAQQK8",
      "links": [
        [
          "sandwich",
          "sandwich"
        ],
        [
          "tuna",
          "tuna"
        ]
      ],
      "translations": [
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "sándvič s tuncóm i plávlenym sýrom",
          "sense": "a hot cheese-tuna sandwich",
          "tags": [
            "neuter"
          ],
          "word": "са́ндвич с тунцо́м и пла́вленым сы́ром"
        },
        {
          "code": "yi",
          "lang": "Yiddish",
          "roman": "tunfish-shnitke mit tseloztn kez",
          "sense": "a hot cheese-tuna sandwich",
          "tags": [
            "feminine"
          ],
          "word": "טונפֿיש־שניטקע מיט צעלאָזטן קעז"
        }
      ]
    }
  ],
  "word": "tuna melt"
}

{
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    {
      "args": {
        "1": "en",
        "2": "tuna",
        "3": "melt"
      },
      "expansion": "tuna + melt",
      "name": "compound"
    }
  ],
  "etymology_text": "From tuna + melt; derived from melt sandwich.",
  "forms": [
    {
      "form": "tuna melts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "expansion": "tuna melt (plural tuna melts)",
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A sandwich with tuna and a layer of melted cheese in it, usually eaten hot."
      ],
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        [
          "sandwich",
          "sandwich"
        ],
        [
          "tuna",
          "tuna"
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      ]
    }
  ],
  "translations": [
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "sándvič s tuncóm i plávlenym sýrom",
      "sense": "a hot cheese-tuna sandwich",
      "tags": [
        "neuter"
      ],
      "word": "са́ндвич с тунцо́м и пла́вленым сы́ром"
    },
    {
      "code": "yi",
      "lang": "Yiddish",
      "roman": "tunfish-shnitke mit tseloztn kez",
      "sense": "a hot cheese-tuna sandwich",
      "tags": [
        "feminine"
      ],
      "word": "טונפֿיש־שניטקע מיט צעלאָזטן קעז"
    }
  ],
  "word": "tuna melt"
}