"knapper" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "knap",
        "3": "er"
      },
      "expansion": "knap + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "knap + -er",
  "forms": [
    {
      "form": "knappers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "knapper (plural knappers)",
      "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": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -er",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Occupations",
          "orig": "en:Occupations",
          "parents": [
            "People",
            "Work",
            "Human",
            "Human activity",
            "All topics",
            "Human behaviour",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "stone knapper"
        },
        {
          "word": "stone-knapper"
        },
        {
          "word": "stoneknapper"
        }
      ],
      "glosses": [
        "One who knaps."
      ],
      "id": "en-knapper-en-noun-e-P7~Po3",
      "links": [
        [
          "knap",
          "knap"
        ]
      ],
      "translations": [
        {
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "kamenar",
          "sense": "One who knaps",
          "tags": [
            "masculine"
          ],
          "word": "каменар"
        }
      ]
    }
  ],
  "sounds": [
    {
      "homophone": "napper"
    }
  ],
  "word": "knapper"
}

{
  "derived": [
    {
      "word": "stone knapper"
    },
    {
      "word": "stone-knapper"
    },
    {
      "word": "stoneknapper"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "knap",
        "3": "er"
      },
      "expansion": "knap + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "knap + -er",
  "forms": [
    {
      "form": "knappers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "knapper (plural knappers)",
      "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 nouns",
        "English terms suffixed with -er",
        "English terms with homophones",
        "en:Occupations",
        "en:People"
      ],
      "glosses": [
        "One who knaps."
      ],
      "links": [
        [
          "knap",
          "knap"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "homophone": "napper"
    }
  ],
  "translations": [
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "kamenar",
      "sense": "One who knaps",
      "tags": [
        "masculine"
      ],
      "word": "каменар"
    }
  ],
  "word": "knapper"
}