"major in" meaning in English

{
  "forms": [
    {
      "form": "majors in",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "majoring in",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "majored in",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "majored in",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "major in (third-person singular simple present majors in, present participle majoring in, simple past and past participle majored in)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Canadian 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": "English phrasal verbs formed with \"in\"",
          "parents": [],
          "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 Spanish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Education",
          "orig": "en:Education",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "John majored in Computer Science, while Jane majored in Art.",
          "type": "example"
        }
      ],
      "glosses": [
        "To take (something) as one's major field of study in an institute of tertiary education (such as a college or university)."
      ],
      "id": "en-major_in-en-verb-ctTTCU1-",
      "links": [
        [
          "education",
          "education"
        ]
      ],
      "raw_glosses": [
        "(US, Canada, education) To take (something) as one's major field of study in an institute of tertiary education (such as a college or university)."
      ],
      "tags": [
        "Canada",
        "US"
      ],
      "topics": [
        "education"
      ],
      "translations": [
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "word": "especializarse en"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "word": "cursar una carrera"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "word": "encarrerarse"
        }
      ]
    }
  ],
  "word": "major in"
}

{
  "forms": [
    {
      "form": "majors in",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "majoring in",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "majored in",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "majored in",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "major in (third-person singular simple present majors in, present participle majoring in, simple past and past participle majored in)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "American English",
        "Canadian English",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs formed with \"in\"",
        "English terms with usage examples",
        "English verbs",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Spanish translations",
        "Translation table header lacks gloss",
        "en:Education"
      ],
      "examples": [
        {
          "text": "John majored in Computer Science, while Jane majored in Art.",
          "type": "example"
        }
      ],
      "glosses": [
        "To take (something) as one's major field of study in an institute of tertiary education (such as a college or university)."
      ],
      "links": [
        [
          "education",
          "education"
        ]
      ],
      "raw_glosses": [
        "(US, Canada, education) To take (something) as one's major field of study in an institute of tertiary education (such as a college or university)."
      ],
      "tags": [
        "Canada",
        "US"
      ],
      "topics": [
        "education"
      ]
    }
  ],
  "translations": [
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "word": "especializarse en"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "word": "cursar una carrera"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "word": "encarrerarse"
    }
  ],
  "word": "major in"
}