"First Contact Day" meaning in All languages combined

{
  "etymology_text": "first contact + day.\nFrom the fictional instance of official first contact in the Star Trek fictional universe for Earth, occurring in the 1996 film First Contact on 5 April 2063. Taken by Trekkies as a day to celebrate Star Trek.",
  "forms": [
    {
      "form": "First Contact Days",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "First Contact Day"
      },
      "expansion": "First Contact Day (plural First Contact Days)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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": "Star Trek",
          "orig": "en:Star Trek",
          "parents": [
            "American fiction",
            "Film",
            "Science fiction",
            "Television",
            "Fiction",
            "United States",
            "Entertainment",
            "Mass media",
            "Speculative fiction",
            "Broadcasting",
            "Artistic works",
            "North America",
            "Culture",
            "Media",
            "Genres",
            "Telecommunications",
            "Art",
            "America",
            "Society",
            "Communication",
            "Technology",
            "Earth",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "Aliens Day"
        },
        {
          "word": "Alien Day (26 April)"
        },
        {
          "word": "Back to the Future Day (21 October 2015)"
        },
        {
          "word": "May the Fourth (4 May)"
        },
        {
          "word": "Revenge of the Sixth (6 May)"
        },
        {
          "word": "Star Trek Day (8 September)"
        }
      ],
      "glosses": [
        "April 5th, an annual occasion to celebrate Star Trek."
      ],
      "id": "en-First_Contact_Day-en-noun-BrG4n9An",
      "links": [
        [
          "fandom",
          "fandom"
        ],
        [
          "slang",
          "slang"
        ]
      ],
      "raw_glosses": [
        "(fandom slang) April 5th, an annual occasion to celebrate Star Trek."
      ],
      "synonyms": [
        {
          "word": "Star Trek Day"
        }
      ],
      "tags": [
        "slang"
      ],
      "topics": [
        "lifestyle"
      ],
      "wikipedia": [
        "en:First Contact Day",
        "en:Star Trek: First Contact"
      ]
    }
  ],
  "word": "First Contact Day"
}

{
  "coordinate_terms": [
    {
      "word": "Aliens Day"
    },
    {
      "word": "Alien Day (26 April)"
    },
    {
      "word": "Back to the Future Day (21 October 2015)"
    },
    {
      "word": "May the Fourth (4 May)"
    },
    {
      "word": "Revenge of the Sixth (6 May)"
    },
    {
      "word": "Star Trek Day (8 September)"
    }
  ],
  "etymology_text": "first contact + day.\nFrom the fictional instance of official first contact in the Star Trek fictional universe for Earth, occurring in the 1996 film First Contact on 5 April 2063. Taken by Trekkies as a day to celebrate Star Trek.",
  "forms": [
    {
      "form": "First Contact Days",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "First Contact Day"
      },
      "expansion": "First Contact Day (plural First Contact Days)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English fandom slang",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Star Trek"
      ],
      "glosses": [
        "April 5th, an annual occasion to celebrate Star Trek."
      ],
      "links": [
        [
          "fandom",
          "fandom"
        ],
        [
          "slang",
          "slang"
        ]
      ],
      "raw_glosses": [
        "(fandom slang) April 5th, an annual occasion to celebrate Star Trek."
      ],
      "tags": [
        "slang"
      ],
      "topics": [
        "lifestyle"
      ],
      "wikipedia": [
        "en:First Contact Day",
        "en:Star Trek: First Contact"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Star Trek Day"
    }
  ],
  "word": "First Contact Day"
}