"call to action" meaning in English

{
  "forms": [
    {
      "form": "calls to action",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "calls to action"
      },
      "expansion": "call to action (plural calls to action)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "82 18",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An appeal for action."
      ],
      "id": "en-call_to_action-en-noun-oN1eqeMw",
      "links": [
        [
          "appeal",
          "appeal"
        ],
        [
          "action",
          "action"
        ]
      ],
      "related": [
        {
          "_dis1": "84 16",
          "word": "call to arms"
        },
        {
          "_dis1": "84 16",
          "word": "wake-up call"
        }
      ],
      "synonyms": [
        {
          "word": "trumpet call"
        },
        {
          "word": "clarion call"
        },
        {
          "_dis1": "84 16",
          "tags": [
            "initialism"
          ],
          "word": "CTA"
        }
      ],
      "translations": [
        {
          "_dis1": "99 1",
          "code": "ar",
          "lang": "Arabic",
          "roman": "daʕwa",
          "sense": "appeal for action",
          "tags": [
            "feminine"
          ],
          "word": "دَعْوَة"
        },
        {
          "_dis1": "99 1",
          "code": "fi",
          "lang": "Finnish",
          "sense": "appeal for action",
          "word": "vetoomus toimiin"
        },
        {
          "_dis1": "99 1",
          "code": "fi",
          "lang": "Finnish",
          "sense": "appeal for action",
          "word": "kehotus toimiin"
        },
        {
          "_dis1": "99 1",
          "code": "ka",
          "lang": "Georgian",
          "roman": "mokmedebisḳen moc̣odeba",
          "sense": "appeal for action",
          "word": "მოქმედებისკენ მოწოდება"
        },
        {
          "_dis1": "99 1",
          "code": "de",
          "lang": "German",
          "sense": "appeal for action",
          "tags": [
            "masculine"
          ],
          "word": "Aufruf"
        }
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Marketing",
          "orig": "en:Marketing",
          "parents": [
            "Business",
            "Economics",
            "Society",
            "Social sciences",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A design (words, picture, or otherwise) to prompt an immediate response or encourage an immediate sale."
      ],
      "id": "en-call_to_action-en-noun-TG4Vq5oJ",
      "links": [
        [
          "marketing",
          "marketing#Noun"
        ],
        [
          "response",
          "response"
        ],
        [
          "sale",
          "sale"
        ]
      ],
      "raw_glosses": [
        "(marketing) A design (words, picture, or otherwise) to prompt an immediate response or encourage an immediate sale."
      ],
      "topics": [
        "business",
        "marketing"
      ]
    }
  ],
  "word": "call to action"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns"
  ],
  "forms": [
    {
      "form": "calls to action",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "calls to action"
      },
      "expansion": "call to action (plural calls to action)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "call to arms"
    },
    {
      "word": "wake-up call"
    }
  ],
  "senses": [
    {
      "glosses": [
        "An appeal for action."
      ],
      "links": [
        [
          "appeal",
          "appeal"
        ],
        [
          "action",
          "action"
        ]
      ],
      "synonyms": [
        {
          "word": "trumpet call"
        },
        {
          "word": "clarion call"
        }
      ]
    },
    {
      "categories": [
        "en:Marketing"
      ],
      "glosses": [
        "A design (words, picture, or otherwise) to prompt an immediate response or encourage an immediate sale."
      ],
      "links": [
        [
          "marketing",
          "marketing#Noun"
        ],
        [
          "response",
          "response"
        ],
        [
          "sale",
          "sale"
        ]
      ],
      "raw_glosses": [
        "(marketing) A design (words, picture, or otherwise) to prompt an immediate response or encourage an immediate sale."
      ],
      "topics": [
        "business",
        "marketing"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "initialism"
      ],
      "word": "CTA"
    }
  ],
  "translations": [
    {
      "code": "ar",
      "lang": "Arabic",
      "roman": "daʕwa",
      "sense": "appeal for action",
      "tags": [
        "feminine"
      ],
      "word": "دَعْوَة"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "appeal for action",
      "word": "vetoomus toimiin"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "appeal for action",
      "word": "kehotus toimiin"
    },
    {
      "code": "ka",
      "lang": "Georgian",
      "roman": "mokmedebisḳen moc̣odeba",
      "sense": "appeal for action",
      "word": "მოქმედებისკენ მოწოდება"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "appeal for action",
      "tags": [
        "masculine"
      ],
      "word": "Aufruf"
    }
  ],
  "word": "call to action"
}