"open rate" meaning in English

{
  "forms": [
    {
      "form": "open rates",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "open rate (plural open rates)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Internet",
          "orig": "en:Internet",
          "parents": [
            "Computing",
            "Networking",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Marketing",
          "orig": "en:Marketing",
          "parents": [
            "Business",
            "Economics",
            "Society",
            "Social sciences",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Coordinate term: click-through rate"
        },
        {
          "ref": "2011, John Arnold, E-Mail Marketing For Dummies, John Wiley & Sons",
          "text": "You calculate your open rate by using your non-bounce rate instead of the total e-mails sent because your open rate indicates the strength of your e-mail's identity and content apart from the strength of your deliverability.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A measure used by marketers as an indication of how many people \"view\" or \"open\" the electronic mail they send out."
      ],
      "id": "en-open_rate-en-noun-U3WSu2gg",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "marketing",
          "marketing#Noun"
        ],
        [
          "marketer",
          "marketer"
        ],
        [
          "electronic mail",
          "electronic mail"
        ]
      ],
      "raw_glosses": [
        "(Internet marketing) A measure used by marketers as an indication of how many people \"view\" or \"open\" the electronic mail they send out."
      ],
      "tags": [
        "Internet"
      ],
      "topics": [
        "business",
        "marketing"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Marketing",
          "orig": "en:Marketing",
          "parents": [
            "Business",
            "Economics",
            "Society",
            "Social sciences",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "31 69",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A similar measure applied to conventional advertising mail."
      ],
      "id": "en-open_rate-en-noun-xQybXZf8",
      "links": [
        [
          "marketing",
          "marketing#Noun"
        ],
        [
          "advertising mail",
          "advertising mail"
        ]
      ],
      "raw_glosses": [
        "(marketing) A similar measure applied to conventional advertising mail."
      ],
      "topics": [
        "business",
        "marketing"
      ]
    }
  ],
  "word": "open rate"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns"
  ],
  "forms": [
    {
      "form": "open rates",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "open rate (plural open rates)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English terms with quotations",
        "en:Internet",
        "en:Marketing"
      ],
      "examples": [
        {
          "text": "Coordinate term: click-through rate"
        },
        {
          "ref": "2011, John Arnold, E-Mail Marketing For Dummies, John Wiley & Sons",
          "text": "You calculate your open rate by using your non-bounce rate instead of the total e-mails sent because your open rate indicates the strength of your e-mail's identity and content apart from the strength of your deliverability.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A measure used by marketers as an indication of how many people \"view\" or \"open\" the electronic mail they send out."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "marketing",
          "marketing#Noun"
        ],
        [
          "marketer",
          "marketer"
        ],
        [
          "electronic mail",
          "electronic mail"
        ]
      ],
      "raw_glosses": [
        "(Internet marketing) A measure used by marketers as an indication of how many people \"view\" or \"open\" the electronic mail they send out."
      ],
      "tags": [
        "Internet"
      ],
      "topics": [
        "business",
        "marketing"
      ]
    },
    {
      "categories": [
        "en:Marketing"
      ],
      "glosses": [
        "A similar measure applied to conventional advertising mail."
      ],
      "links": [
        [
          "marketing",
          "marketing#Noun"
        ],
        [
          "advertising mail",
          "advertising mail"
        ]
      ],
      "raw_glosses": [
        "(marketing) A similar measure applied to conventional advertising mail."
      ],
      "topics": [
        "business",
        "marketing"
      ]
    }
  ],
  "word": "open rate"
}