"vanity number" meaning in English

{
  "forms": [
    {
      "form": "vanity numbers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "vanity number (plural vanity numbers)",
      "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": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Telephony",
          "orig": "en:Telephony",
          "parents": [
            "Electronics",
            "Telecommunications",
            "Technology",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A phone number that is registered as a mnemonic whose letters translate into numbers."
      ],
      "id": "en-vanity_number-en-noun-gVljFfu2",
      "links": [
        [
          "telephony",
          "telephony"
        ],
        [
          "phone number",
          "phone number"
        ],
        [
          "register",
          "register"
        ],
        [
          "mnemonic",
          "mnemonic"
        ],
        [
          "letter",
          "letter"
        ],
        [
          "translate",
          "translate"
        ],
        [
          "number",
          "number"
        ]
      ],
      "raw_glosses": [
        "(telephony) A phone number that is registered as a mnemonic whose letters translate into numbers."
      ],
      "topics": [
        "communications",
        "electrical-engineering",
        "engineering",
        "natural-sciences",
        "physical-sciences",
        "telecommunications",
        "telephony"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Phone number registered with mnemonic letters",
          "word": "omavalintainen puhelinnumero"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Phone number registered with mnemonic letters",
          "tags": [
            "feminine"
          ],
          "word": "Vanity-Nummer"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Phone number registered with mnemonic letters",
          "tags": [
            "feminine"
          ],
          "word": "Wortwahlrufnummer"
        }
      ]
    }
  ],
  "word": "vanity number"
}

{
  "forms": [
    {
      "form": "vanity numbers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "vanity number (plural vanity numbers)",
      "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",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with German translations",
        "en:Telephony"
      ],
      "glosses": [
        "A phone number that is registered as a mnemonic whose letters translate into numbers."
      ],
      "links": [
        [
          "telephony",
          "telephony"
        ],
        [
          "phone number",
          "phone number"
        ],
        [
          "register",
          "register"
        ],
        [
          "mnemonic",
          "mnemonic"
        ],
        [
          "letter",
          "letter"
        ],
        [
          "translate",
          "translate"
        ],
        [
          "number",
          "number"
        ]
      ],
      "raw_glosses": [
        "(telephony) A phone number that is registered as a mnemonic whose letters translate into numbers."
      ],
      "topics": [
        "communications",
        "electrical-engineering",
        "engineering",
        "natural-sciences",
        "physical-sciences",
        "telecommunications",
        "telephony"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Phone number registered with mnemonic letters",
      "word": "omavalintainen puhelinnumero"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Phone number registered with mnemonic letters",
      "tags": [
        "feminine"
      ],
      "word": "Vanity-Nummer"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Phone number registered with mnemonic letters",
      "tags": [
        "feminine"
      ],
      "word": "Wortwahlrufnummer"
    }
  ],
  "word": "vanity number"
}