"university of life" meaning in English

{
  "forms": [
    {
      "form": "universities of life",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "universities of life"
      },
      "expansion": "university of life (plural universities of life)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British 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": "Irish English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "I learned all I need to know from the university of life, not from books.",
          "type": "example"
        },
        {
          "ref": "1922 February, James Joyce, Ulysses, Paris: Shakespeare and Company, […], →OCLC:",
          "text": "[BEAUFOY:] We are considerably out of pocket over this bally pressman johnny, this jackdaw of Rheims, who has not even been to a university.\nBLOOM: (Indistinctly) University of life.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The real world as a source of instruction, as opposed to a formal education."
      ],
      "id": "en-university_of_life-en-noun-9m~2Om-F",
      "links": [
        [
          "real world",
          "real world"
        ],
        [
          "instruction",
          "instruction"
        ],
        [
          "formal",
          "formal"
        ],
        [
          "education",
          "education"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, chiefly UK and Ireland) The real world as a source of instruction, as opposed to a formal education."
      ],
      "related": [
        {
          "word": "street smarts"
        }
      ],
      "synonyms": [
        {
          "word": "school of hard knocks"
        },
        {
          "word": "university of the streets"
        }
      ],
      "tags": [
        "Ireland",
        "UK",
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-university of life.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/c3/En-au-university_of_life.ogg/En-au-university_of_life.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/c/c3/En-au-university_of_life.ogg"
    }
  ],
  "word": "university of life"
}

{
  "forms": [
    {
      "form": "universities of life",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "universities of life"
      },
      "expansion": "university of life (plural universities of life)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "street smarts"
    }
  ],
  "senses": [
    {
      "categories": [
        "British English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "English terms with usage examples",
        "Irish English",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "I learned all I need to know from the university of life, not from books.",
          "type": "example"
        },
        {
          "ref": "1922 February, James Joyce, Ulysses, Paris: Shakespeare and Company, […], →OCLC:",
          "text": "[BEAUFOY:] We are considerably out of pocket over this bally pressman johnny, this jackdaw of Rheims, who has not even been to a university.\nBLOOM: (Indistinctly) University of life.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The real world as a source of instruction, as opposed to a formal education."
      ],
      "links": [
        [
          "real world",
          "real world"
        ],
        [
          "instruction",
          "instruction"
        ],
        [
          "formal",
          "formal"
        ],
        [
          "education",
          "education"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, chiefly UK and Ireland) The real world as a source of instruction, as opposed to a formal education."
      ],
      "tags": [
        "Ireland",
        "UK",
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-university of life.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/c3/En-au-university_of_life.ogg/En-au-university_of_life.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/c/c3/En-au-university_of_life.ogg"
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  ],
  "synonyms": [
    {
      "word": "school of hard knocks"
    },
    {
      "word": "university of the streets"
    }
  ],
  "word": "university of life"
}