"door knocker" meaning in English

{
  "forms": [
    {
      "form": "door knockers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "door knocker (plural door knockers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "doorknocker"
        }
      ],
      "categories": [
        {
          "_dis": "64 36",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "75 25",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "86 14",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "84 16",
          "kind": "topical",
          "langcode": "en",
          "name": "Hair",
          "orig": "en:Hair",
          "parents": [
            "Body parts",
            "Body",
            "Anatomy",
            "All topics",
            "Biology",
            "Medicine",
            "Fundamental",
            "Sciences",
            "Healthcare",
            "Health"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Alternative form of doorknocker"
      ],
      "id": "en-door_knocker-en-noun--jc-CtXz",
      "links": [
        [
          "doorknocker",
          "doorknocker#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    },
    {
      "glosses": [
        "A style of beard with a pronounced circular shape."
      ],
      "id": "en-door_knocker-en-noun-VEBj4QpH",
      "links": [
        [
          "beard",
          "beard"
        ],
        [
          "circular",
          "circular"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɒkə(ɹ)"
    }
  ],
  "word": "door knocker"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Pages with 1 entry",
    "Pages with entries",
    "Rhymes:English/ɒkə(ɹ)",
    "Rhymes:English/ɒkə(ɹ)/3 syllables",
    "en:Hair"
  ],
  "forms": [
    {
      "form": "door knockers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "door knocker (plural door knockers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "doorknocker"
        }
      ],
      "glosses": [
        "Alternative form of doorknocker"
      ],
      "links": [
        [
          "doorknocker",
          "doorknocker#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    },
    {
      "glosses": [
        "A style of beard with a pronounced circular shape."
      ],
      "links": [
        [
          "beard",
          "beard"
        ],
        [
          "circular",
          "circular"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɒkə(ɹ)"
    }
  ],
  "word": "door knocker"
}