"upperclassman" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "upper",
        "3": "classman"
      },
      "expansion": "upper + classman",
      "name": "com"
    }
  ],
  "etymology_text": "From upper + classman.",
  "forms": [
    {
      "form": "upperclassmen",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "upperclassmen"
      },
      "expansion": "upperclassman (plural upperclassmen)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Dutch translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Japanese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Korean translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Russian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A junior or senior student in a school or college."
      ],
      "id": "en-upperclassman-en-noun-ClwLELpp",
      "links": [
        [
          "junior",
          "junior"
        ],
        [
          "senior",
          "senior"
        ],
        [
          "student",
          "student"
        ],
        [
          "school",
          "school"
        ],
        [
          "college",
          "college"
        ]
      ],
      "raw_glosses": [
        "(US) A junior or senior student in a school or college."
      ],
      "related": [
        {
          "word": "upperclasswoman"
        },
        {
          "word": "freshman"
        },
        {
          "word": "freshwoman"
        },
        {
          "word": "lowerclassman"
        },
        {
          "word": "underclassman"
        },
        {
          "word": "underclasswoman"
        }
      ],
      "tags": [
        "US"
      ],
      "translations": [
        {
          "code": "nl",
          "lang": "Dutch",
          "sense": "a senior student in a school or college",
          "tags": [
            "feminine",
            "masculine"
          ],
          "word": "ouderejaars"
        },
        {
          "alt": "せんぱい",
          "code": "ja",
          "lang": "Japanese",
          "roman": "senpai",
          "sense": "a senior student in a school or college",
          "word": "先輩"
        },
        {
          "code": "ko",
          "lang": "Korean",
          "roman": "seonbae",
          "sense": "a senior student in a school or college",
          "word": "선배"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "staršeklássnik",
          "sense": "a senior student in a school or college",
          "tags": [
            "masculine"
          ],
          "word": "старшекла́ссник"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "staršeklássnica",
          "sense": "a senior student in a school or college",
          "tags": [
            "feminine"
          ],
          "word": "старшекла́ссница"
        }
      ]
    }
  ],
  "word": "upperclassman"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "upper",
        "3": "classman"
      },
      "expansion": "upper + classman",
      "name": "com"
    }
  ],
  "etymology_text": "From upper + classman.",
  "forms": [
    {
      "form": "upperclassmen",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "upperclassmen"
      },
      "expansion": "upperclassman (plural upperclassmen)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "upperclasswoman"
    },
    {
      "word": "freshman"
    },
    {
      "word": "freshwoman"
    },
    {
      "word": "lowerclassman"
    },
    {
      "word": "underclassman"
    },
    {
      "word": "underclasswoman"
    }
  ],
  "senses": [
    {
      "categories": [
        "American English",
        "English adjective-noun compound nouns",
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English nouns with irregular plurals",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Dutch translations",
        "Terms with Japanese translations",
        "Terms with Korean translations",
        "Terms with Russian translations",
        "en:People"
      ],
      "glosses": [
        "A junior or senior student in a school or college."
      ],
      "links": [
        [
          "junior",
          "junior"
        ],
        [
          "senior",
          "senior"
        ],
        [
          "student",
          "student"
        ],
        [
          "school",
          "school"
        ],
        [
          "college",
          "college"
        ]
      ],
      "raw_glosses": [
        "(US) A junior or senior student in a school or college."
      ],
      "tags": [
        "US"
      ]
    }
  ],
  "translations": [
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "a senior student in a school or college",
      "tags": [
        "feminine",
        "masculine"
      ],
      "word": "ouderejaars"
    },
    {
      "alt": "せんぱい",
      "code": "ja",
      "lang": "Japanese",
      "roman": "senpai",
      "sense": "a senior student in a school or college",
      "word": "先輩"
    },
    {
      "code": "ko",
      "lang": "Korean",
      "roman": "seonbae",
      "sense": "a senior student in a school or college",
      "word": "선배"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "staršeklássnik",
      "sense": "a senior student in a school or college",
      "tags": [
        "masculine"
      ],
      "word": "старшекла́ссник"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "staršeklássnica",
      "sense": "a senior student in a school or college",
      "tags": [
        "feminine"
      ],
      "word": "старшекла́ссница"
    }
  ],
  "word": "upperclassman"
}