"time barrier" meaning in English

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      "expansion": "time barrier (plural not attested)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Science fiction",
          "orig": "en:Science fiction",
          "parents": [
            "Fiction",
            "Speculative fiction",
            "Artistic works",
            "Genres",
            "Art",
            "Entertainment",
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            "Fundamental"
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          "source": "w"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Time travel",
          "orig": "en:Time travel",
          "parents": [
            "Relativity",
            "Science fiction",
            "Time",
            "Travel",
            "Physics",
            "Fiction",
            "Speculative fiction",
            "All topics",
            "Human activity",
            "Transport",
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      ],
      "glosses": [
        "A barrier or obstacle preventing time travel, especially one resulting from technological limitations."
      ],
      "id": "en-time_barrier-en-noun-K-aPDXCD",
      "links": [
        [
          "science fiction",
          "science fiction"
        ],
        [
          "barrier",
          "barrier#Noun"
        ],
        [
          "obstacle",
          "obstacle#Noun"
        ],
        [
          "time travel",
          "time travel#Noun"
        ],
        [
          "technological",
          "technological#Adjective"
        ],
        [
          "limitations",
          "limitation#Noun"
        ]
      ],
      "raw_glosses": [
        "(science fiction) A barrier or obstacle preventing time travel, especially one resulting from technological limitations."
      ],
      "tags": [
        "no-plural"
      ],
      "topics": [
        "literature",
        "media",
        "publishing",
        "science-fiction"
      ]
    }
  ],
  "word": "time barrier"
}

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      "expansion": "time barrier (plural not attested)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Science fiction",
        "en:Time travel"
      ],
      "glosses": [
        "A barrier or obstacle preventing time travel, especially one resulting from technological limitations."
      ],
      "links": [
        [
          "science fiction",
          "science fiction"
        ],
        [
          "barrier",
          "barrier#Noun"
        ],
        [
          "obstacle",
          "obstacle#Noun"
        ],
        [
          "time travel",
          "time travel#Noun"
        ],
        [
          "technological",
          "technological#Adjective"
        ],
        [
          "limitations",
          "limitation#Noun"
        ]
      ],
      "raw_glosses": [
        "(science fiction) A barrier or obstacle preventing time travel, especially one resulting from technological limitations."
      ],
      "tags": [
        "no-plural"
      ],
      "topics": [
        "literature",
        "media",
        "publishing",
        "science-fiction"
      ]
    }
  ],
  "word": "time barrier"
}