"rangekeeper" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "range",
        "3": "keeper"
      },
      "expansion": "range + keeper",
      "name": "compound"
    }
  ],
  "etymology_text": "From range + keeper.",
  "forms": [
    {
      "form": "rangekeepers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rangekeeper (plural rangekeepers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Military",
          "orig": "en:Military",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "An early electromechanical computer used to direct gunfire."
      ],
      "id": "en-rangekeeper-en-noun-mYT~Vx4q",
      "links": [
        [
          "military",
          "military"
        ],
        [
          "electromechanical",
          "electromechanical"
        ],
        [
          "computer",
          "computer"
        ],
        [
          "direct",
          "direct"
        ],
        [
          "gunfire",
          "gunfire"
        ]
      ],
      "raw_glosses": [
        "(military, historical) An early electromechanical computer used to direct gunfire."
      ],
      "tags": [
        "historical"
      ],
      "topics": [
        "government",
        "military",
        "politics",
        "war"
      ]
    }
  ],
  "word": "rangekeeper"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "range",
        "3": "keeper"
      },
      "expansion": "range + keeper",
      "name": "compound"
    }
  ],
  "etymology_text": "From range + keeper.",
  "forms": [
    {
      "form": "rangekeepers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rangekeeper (plural rangekeepers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with historical senses",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Military"
      ],
      "glosses": [
        "An early electromechanical computer used to direct gunfire."
      ],
      "links": [
        [
          "military",
          "military"
        ],
        [
          "electromechanical",
          "electromechanical"
        ],
        [
          "computer",
          "computer"
        ],
        [
          "direct",
          "direct"
        ],
        [
          "gunfire",
          "gunfire"
        ]
      ],
      "raw_glosses": [
        "(military, historical) An early electromechanical computer used to direct gunfire."
      ],
      "tags": [
        "historical"
      ],
      "topics": [
        "government",
        "military",
        "politics",
        "war"
      ]
    }
  ],
  "word": "rangekeeper"
}