"Black Saturday" meaning in English

{
  "forms": [
    {
      "form": "Black Saturdays",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "Black Saturday"
      },
      "expansion": "Black Saturday (plural Black Saturdays)",
      "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": "other",
          "name": "Philippine English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Calendar",
          "orig": "en:Calendar",
          "parents": [
            "Timekeeping",
            "Time",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Christianity",
          "orig": "en:Christianity",
          "parents": [
            "Abrahamism",
            "Religion",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Easter",
          "orig": "en:Easter",
          "parents": [
            "Christianity",
            "Holidays",
            "Abrahamism",
            "Observances",
            "Religion",
            "Calendar",
            "Culture",
            "Timekeeping",
            "Society",
            "Time",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of Holy Saturday."
      ],
      "id": "en-Black_Saturday-en-noun-Vh~lvrtc",
      "links": [
        [
          "Holy Saturday",
          "Holy Saturday#English"
        ]
      ],
      "raw_glosses": [
        "(Philippines) Synonym of Holy Saturday."
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "Holy Saturday"
        }
      ],
      "tags": [
        "Philippines"
      ]
    }
  ],
  "word": "Black Saturday"
}

{
  "forms": [
    {
      "form": "Black Saturdays",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "Black Saturday"
      },
      "expansion": "Black Saturday (plural Black Saturdays)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "Philippine English",
        "en:Calendar",
        "en:Christianity",
        "en:Easter"
      ],
      "glosses": [
        "Synonym of Holy Saturday."
      ],
      "links": [
        [
          "Holy Saturday",
          "Holy Saturday#English"
        ]
      ],
      "raw_glosses": [
        "(Philippines) Synonym of Holy Saturday."
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "Holy Saturday"
        }
      ],
      "tags": [
        "Philippines"
      ]
    }
  ],
  "word": "Black Saturday"
}