"descend upon" meaning in English

{
  "forms": [
    {
      "form": "descends upon",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "descending upon",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "descended upon",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "descended upon",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "descend upon (third-person singular simple present descends upon, present participle descending upon, simple past and past participle descended upon)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "glosses": [
        "to arrive in large numbers, usually without warning or invitation",
        "to attack or raid"
      ],
      "id": "en-descend_upon-en-verb-yLUT5vGH",
      "links": [
        [
          "arrive",
          "arrive"
        ],
        [
          "warning",
          "warning"
        ],
        [
          "invitation",
          "invitation"
        ],
        [
          "attack",
          "attack"
        ],
        [
          "raid",
          "raid"
        ]
      ]
    },
    {
      "glosses": [
        "to arrive in large numbers, usually without warning or invitation",
        "to encroach or invade"
      ],
      "id": "en-descend_upon-en-verb-T8c5KFC7",
      "links": [
        [
          "arrive",
          "arrive"
        ],
        [
          "warning",
          "warning"
        ],
        [
          "invitation",
          "invitation"
        ],
        [
          "encroach",
          "encroach"
        ],
        [
          "invade",
          "invade"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "9 7 84",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "15 15 70",
          "kind": "other",
          "name": "English phrasal verbs with particle (upon)",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "2013, Laurie Gaarrett, Maxine Builder, The Middle East Plague Goes Global",
          "text": "This fall, millions of devout Muslims will descend upon Mecca, Medina, and Saudi Arabia's holy sites in one of the largest annual migrations in human history.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "to visit in large numbers, especially a public place"
      ],
      "id": "en-descend_upon-en-verb-68unzqLJ",
      "links": [
        [
          "visit",
          "visit"
        ],
        [
          "public place",
          "public place"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "_dis1": "34 30 36",
      "word": "descend on"
    }
  ],
  "word": "descend upon"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English phrasal verbs",
    "English phrasal verbs with particle (upon)",
    "English verbs"
  ],
  "forms": [
    {
      "form": "descends upon",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "descending upon",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "descended upon",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "descended upon",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "descend upon (third-person singular simple present descends upon, present participle descending upon, simple past and past participle descended upon)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "glosses": [
        "to arrive in large numbers, usually without warning or invitation",
        "to attack or raid"
      ],
      "links": [
        [
          "arrive",
          "arrive"
        ],
        [
          "warning",
          "warning"
        ],
        [
          "invitation",
          "invitation"
        ],
        [
          "attack",
          "attack"
        ],
        [
          "raid",
          "raid"
        ]
      ]
    },
    {
      "glosses": [
        "to arrive in large numbers, usually without warning or invitation",
        "to encroach or invade"
      ],
      "links": [
        [
          "arrive",
          "arrive"
        ],
        [
          "warning",
          "warning"
        ],
        [
          "invitation",
          "invitation"
        ],
        [
          "encroach",
          "encroach"
        ],
        [
          "invade",
          "invade"
        ]
      ]
    },
    {
      "categories": [
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "2013, Laurie Gaarrett, Maxine Builder, The Middle East Plague Goes Global",
          "text": "This fall, millions of devout Muslims will descend upon Mecca, Medina, and Saudi Arabia's holy sites in one of the largest annual migrations in human history.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "to visit in large numbers, especially a public place"
      ],
      "links": [
        [
          "visit",
          "visit"
        ],
        [
          "public place",
          "public place"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "descend on"
    }
  ],
  "word": "descend upon"
}