"act upon" meaning in English

{
  "forms": [
    {
      "form": "acts upon",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "acting upon",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "acted upon",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "acted upon",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "act upon (third-person singular simple present acts upon, present participle acting upon, simple past and past participle acted upon)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English phrasal verbs formed with \"upon\"",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The policeman decided to act upon the informant's phone call.",
          "type": "example"
        },
        {
          "ref": "2023 November 1, Ian Prosser talks to Stefanie Foster, “Safety Mission: Possible”, in RAIL, number 995, page 36:",
          "text": "NR had carried out risk assessments in 2002, identifying potential dangers with the crossing and recommending the installation of automatic locking gates. But this was not acted upon. In 2007, following the tragic deaths of Charlotte and Olivia, NR erected a footbridge and installed locking gates at the foot crossing.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To take action on the basis of information received or deduced."
      ],
      "id": "en-act_upon-en-verb-IYHvnD8V",
      "links": [
        [
          "basis",
          "basis"
        ],
        [
          "information",
          "information"
        ],
        [
          "receive",
          "receive"
        ],
        [
          "deduce",
          "deduce"
        ]
      ]
    }
  ],
  "word": "act upon"
}

{
  "forms": [
    {
      "form": "acts upon",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "acting upon",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "acted upon",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "acted upon",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "act upon (third-person singular simple present acts upon, present participle acting upon, simple past and past participle acted upon)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs formed with \"upon\"",
        "English terms with quotations",
        "English terms with usage examples",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "The policeman decided to act upon the informant's phone call.",
          "type": "example"
        },
        {
          "ref": "2023 November 1, Ian Prosser talks to Stefanie Foster, “Safety Mission: Possible”, in RAIL, number 995, page 36:",
          "text": "NR had carried out risk assessments in 2002, identifying potential dangers with the crossing and recommending the installation of automatic locking gates. But this was not acted upon. In 2007, following the tragic deaths of Charlotte and Olivia, NR erected a footbridge and installed locking gates at the foot crossing.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To take action on the basis of information received or deduced."
      ],
      "links": [
        [
          "basis",
          "basis"
        ],
        [
          "information",
          "information"
        ],
        [
          "receive",
          "receive"
        ],
        [
          "deduce",
          "deduce"
        ]
      ]
    }
  ],
  "word": "act upon"
}