".45" meaning in All languages combined

{
  "forms": [
    {
      "form": ".45s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": ".45 (plural .45s)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Firearms",
          "orig": "en:Firearms",
          "parents": [
            "Weapons",
            "Hunting",
            "Military",
            "Tools",
            "Human activity",
            "Society",
            "Technology",
            "Human behaviour",
            "All topics",
            "Human",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2013, T. Van Ewell, Recon Airplane Company: III Corps, Vietnam, page 182:",
          "text": "He was wearing the normal jungle fatigues and had a .45 in a holster on his waist.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A standard kind of firearm designed to fire bullets that are approximately 0.45 inch in diameter."
      ],
      "id": "en-.45-en-noun-aW7fc6lN",
      "links": [
        [
          "firearm",
          "firearm"
        ]
      ],
      "raw_glosses": [
        "(firearms) A standard kind of firearm designed to fire bullets that are approximately 0.45 inch in diameter."
      ],
      "related": [
        {
          "word": ".22"
        },
        {
          "word": ".38"
        }
      ],
      "topics": [
        "engineering",
        "firearms",
        "government",
        "military",
        "natural-sciences",
        "physical-sciences",
        "politics",
        "tools",
        "war",
        "weaponry"
      ]
    }
  ],
  "word": ".45"
}

{
  "forms": [
    {
      "form": ".45s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": ".45 (plural .45s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": ".22"
    },
    {
      "word": ".38"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms spelled with .",
        "English terms spelled with numbers",
        "English terms with quotations",
        "English words without vowels",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Firearms"
      ],
      "examples": [
        {
          "ref": "2013, T. Van Ewell, Recon Airplane Company: III Corps, Vietnam, page 182:",
          "text": "He was wearing the normal jungle fatigues and had a .45 in a holster on his waist.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A standard kind of firearm designed to fire bullets that are approximately 0.45 inch in diameter."
      ],
      "links": [
        [
          "firearm",
          "firearm"
        ]
      ],
      "raw_glosses": [
        "(firearms) A standard kind of firearm designed to fire bullets that are approximately 0.45 inch in diameter."
      ],
      "topics": [
        "engineering",
        "firearms",
        "government",
        "military",
        "natural-sciences",
        "physical-sciences",
        "politics",
        "tools",
        "war",
        "weaponry"
      ]
    }
  ],
  "word": ".45"
}