"somewhere over the rainbow" meaning in English

{
  "etymology_text": "Popularized from the song Over the Rainbow by Judy Garland, written by Harold Arlen (music) and E. Y. Harburg (lyrics) for the film The Wizard of Oz",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "somewhere over the rainbow (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "The Wizard of Oz",
          "orig": "en:The Wizard of Oz",
          "parents": [
            "American fiction",
            "Literature",
            "Fiction",
            "United States",
            "Culture",
            "Entertainment",
            "Writing",
            "Artistic works",
            "North America",
            "Society",
            "Human behaviour",
            "Language",
            "Art",
            "America",
            "All topics",
            "Human",
            "Communication",
            "Earth",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1996, Ann DuCille, Skin Trade:",
          "text": "Perhaps somewhere over the rainbow there is a land where equality and justice are colorblind, where no one is the other, where no one by virtue of race, gender, or sexual orientation is an outcast or an anomaly.",
          "type": "quote"
        },
        {
          "ref": "1939, Judy Garland, Over the Rainbow:",
          "text": "Somewhere over the rainbow\nWay up high,\nThere's a land that I heard of\nOnce in a lullaby",
          "type": "quote"
        }
      ],
      "glosses": [
        "In an unknown, hypothetical, or very distant place."
      ],
      "id": "en-somewhere_over_the_rainbow-en-adv-omFE2cxe",
      "links": [
        [
          "unknown",
          "unknown"
        ],
        [
          "hypothetical",
          "hypothetical"
        ],
        [
          "distant",
          "distant"
        ],
        [
          "place",
          "place"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) In an unknown, hypothetical, or very distant place."
      ],
      "tags": [
        "idiomatic",
        "not-comparable"
      ],
      "wikipedia": [
        "Harold Arlen",
        "Judy Garland",
        "Over the Rainbow",
        "Yip Harburg"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-somewhere over the rainbow.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/70/En-au-somewhere_over_the_rainbow.ogg/En-au-somewhere_over_the_rainbow.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/7/70/En-au-somewhere_over_the_rainbow.ogg"
    }
  ],
  "word": "somewhere over the rainbow"
}

{
  "etymology_text": "Popularized from the song Over the Rainbow by Judy Garland, written by Harold Arlen (music) and E. Y. Harburg (lyrics) for the film The Wizard of Oz",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "somewhere over the rainbow (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "English adverbs",
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "English uncomparable adverbs",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned",
        "en:The Wizard of Oz"
      ],
      "examples": [
        {
          "ref": "1996, Ann DuCille, Skin Trade:",
          "text": "Perhaps somewhere over the rainbow there is a land where equality and justice are colorblind, where no one is the other, where no one by virtue of race, gender, or sexual orientation is an outcast or an anomaly.",
          "type": "quote"
        },
        {
          "ref": "1939, Judy Garland, Over the Rainbow:",
          "text": "Somewhere over the rainbow\nWay up high,\nThere's a land that I heard of\nOnce in a lullaby",
          "type": "quote"
        }
      ],
      "glosses": [
        "In an unknown, hypothetical, or very distant place."
      ],
      "links": [
        [
          "unknown",
          "unknown"
        ],
        [
          "hypothetical",
          "hypothetical"
        ],
        [
          "distant",
          "distant"
        ],
        [
          "place",
          "place"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) In an unknown, hypothetical, or very distant place."
      ],
      "tags": [
        "idiomatic",
        "not-comparable"
      ],
      "wikipedia": [
        "Harold Arlen",
        "Judy Garland",
        "Over the Rainbow",
        "Yip Harburg"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-somewhere over the rainbow.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/70/En-au-somewhere_over_the_rainbow.ogg/En-au-somewhere_over_the_rainbow.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/7/70/En-au-somewhere_over_the_rainbow.ogg"
    }
  ],
  "word": "somewhere over the rainbow"
}