"Dear John" meaning in English

{
  "forms": [
    {
      "form": "Dear Johns",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "Dear John"
      },
      "expansion": "Dear John (plural Dear Johns)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2011, Judy Duarte, Call Me Cowboy",
          "text": "One of my roommates, Kevin Baker, fell apart when his fiancée, an old high school sweetheart, gave him a Dear John phone call.",
          "type": "quotation"
        },
        {
          "ref": "2019, J. B. Curry, Bad Keys",
          "text": "She sent me a Dear John email and divorce papers from Sioux Falls, and I never saw her again.",
          "type": "quotation"
        },
        {
          "ref": "2022, Susan L. Carruthers, Dear John: Love and Loyalty in Wartime America, page 122",
          "text": "A Dear John was a letter from a wife that announced her desire for a divorce. Many GIs might have corrected the professor, however, pointing out that girlfriends and fiancées also sent Dear Johns.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A Dear John letter in any form or medium."
      ],
      "id": "en-Dear_John-en-noun-TCwwoTGT",
      "links": [
        [
          "Dear John letter",
          "Dear John letter"
        ]
      ],
      "raw_glosses": [
        "(often attributive) A Dear John letter in any form or medium."
      ],
      "tags": [
        "attributive",
        "often"
      ]
    }
  ],
  "word": "Dear John"
}

{
  "forms": [
    {
      "form": "Dear Johns",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "Dear John"
      },
      "expansion": "Dear John (plural Dear Johns)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "2011, Judy Duarte, Call Me Cowboy",
          "text": "One of my roommates, Kevin Baker, fell apart when his fiancée, an old high school sweetheart, gave him a Dear John phone call.",
          "type": "quotation"
        },
        {
          "ref": "2019, J. B. Curry, Bad Keys",
          "text": "She sent me a Dear John email and divorce papers from Sioux Falls, and I never saw her again.",
          "type": "quotation"
        },
        {
          "ref": "2022, Susan L. Carruthers, Dear John: Love and Loyalty in Wartime America, page 122",
          "text": "A Dear John was a letter from a wife that announced her desire for a divorce. Many GIs might have corrected the professor, however, pointing out that girlfriends and fiancées also sent Dear Johns.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A Dear John letter in any form or medium."
      ],
      "links": [
        [
          "Dear John letter",
          "Dear John letter"
        ]
      ],
      "raw_glosses": [
        "(often attributive) A Dear John letter in any form or medium."
      ],
      "tags": [
        "attributive",
        "often"
      ]
    }
  ],
  "word": "Dear John"
}