"Khyber knife" meaning in English

{
  "forms": [
    {
      "form": "Khyber knives",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "Khyber knives"
      },
      "expansion": "Khyber knife (plural Khyber knives)",
      "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"
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          "source": "w"
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          "parents": [
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            "Entry maintenance"
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          "source": "w"
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          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Knives",
          "orig": "en:Knives",
          "parents": [
            "Tools",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A kind of Indo-Persian knife designed to penetrate armor."
      ],
      "id": "en-Khyber_knife-en-noun-zKA-HdTT",
      "links": [
        [
          "Indo-Persian",
          "Indo-Persian"
        ],
        [
          "knife",
          "knife"
        ],
        [
          "penetrate",
          "penetrate"
        ],
        [
          "armor",
          "armor"
        ]
      ],
      "synonyms": [
        {
          "word": "pesh-kabz"
        }
      ]
    }
  ],
  "word": "Khyber knife"
}

{
  "forms": [
    {
      "form": "Khyber knives",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "Khyber knives"
      },
      "expansion": "Khyber knife (plural Khyber knives)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Knives"
      ],
      "glosses": [
        "A kind of Indo-Persian knife designed to penetrate armor."
      ],
      "links": [
        [
          "Indo-Persian",
          "Indo-Persian"
        ],
        [
          "knife",
          "knife"
        ],
        [
          "penetrate",
          "penetrate"
        ],
        [
          "armor",
          "armor"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "pesh-kabz"
    }
  ],
  "word": "Khyber knife"
}