"13er" meaning in English

{
  "forms": [
    {
      "form": "13ers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "13er (plural 13ers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "mountain with an elevation of at least 13,000 feet",
          "word": "thirteener"
        }
      ],
      "categories": [],
      "examples": [
        {
          "ref": "2022 August 2, Joe LaFleur, “CT Series: Kokomo Pass area delivers on alpine expanses with bonus fall colors”, in Pikes Peak Courier:",
          "text": "The bare and grassy Elk Mountain 12er stands to the north, contrasted by ragged 13ers to the east rising above Mayflower Gulch, an impressive lineup including Crystal, Atlantic and Pacific Peaks, Fletcher Mountain and Drift Peak.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of thirteener (“mountain with an elevation of at least 13,000 feet”)."
      ],
      "id": "en-13er-en-noun-yUy9artm",
      "links": [
        [
          "thirteener",
          "thirteener#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    },
    {
      "alt_of": [
        {
          "extra": "Gen-Xer",
          "word": "thirteener"
        }
      ],
      "categories": [
        {
          "_dis": "34 66",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "23 77",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "23 77",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "44 56",
          "kind": "topical",
          "langcode": "en",
          "name": "Generations",
          "orig": "en:Generations",
          "parents": [
            "Age",
            "Collectives",
            "Demography",
            "People",
            "Sociology",
            "Human",
            "Time",
            "Miscellaneous",
            "Sciences",
            "Statistics",
            "Social sciences",
            "All topics",
            "Formal sciences",
            "Mathematics",
            "Society",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1991, William Strauss, Neil Howe, Generations, Quill, →ISBN, page 324:",
          "text": "Yet the worst aspect of this “bust” nomer, and why 13ers resent it, is how it plants today's 25-year-olds squarely where they don't want to be: in the shadow of the “boom[.]”",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of thirteener (“Gen-Xer”)."
      ],
      "id": "en-13er-en-noun-IHv-dcmA",
      "links": [
        [
          "thirteener",
          "thirteener#English"
        ],
        [
          "Gen-Xer",
          "Gen-Xer"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "13er"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms spelled with numbers",
    "Pages with 1 entry",
    "Pages with entries",
    "en:Generations"
  ],
  "forms": [
    {
      "form": "13ers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "13er (plural 13ers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "mountain with an elevation of at least 13,000 feet",
          "word": "thirteener"
        }
      ],
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2022 August 2, Joe LaFleur, “CT Series: Kokomo Pass area delivers on alpine expanses with bonus fall colors”, in Pikes Peak Courier:",
          "text": "The bare and grassy Elk Mountain 12er stands to the north, contrasted by ragged 13ers to the east rising above Mayflower Gulch, an impressive lineup including Crystal, Atlantic and Pacific Peaks, Fletcher Mountain and Drift Peak.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of thirteener (“mountain with an elevation of at least 13,000 feet”)."
      ],
      "links": [
        [
          "thirteener",
          "thirteener#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    },
    {
      "alt_of": [
        {
          "extra": "Gen-Xer",
          "word": "thirteener"
        }
      ],
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1991, William Strauss, Neil Howe, Generations, Quill, →ISBN, page 324:",
          "text": "Yet the worst aspect of this “bust” nomer, and why 13ers resent it, is how it plants today's 25-year-olds squarely where they don't want to be: in the shadow of the “boom[.]”",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of thirteener (“Gen-Xer”)."
      ],
      "links": [
        [
          "thirteener",
          "thirteener#English"
        ],
        [
          "Gen-Xer",
          "Gen-Xer"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "13er"
}