"linebacking" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "line",
        "3": "backing"
      },
      "expansion": "line + backing",
      "name": "compound"
    }
  ],
  "etymology_text": "line + backing",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "linebacking (uncountable)",
      "name": "en-noun"
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  ],
  "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"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Football (American)",
          "orig": "en:Football (American)",
          "parents": [
            "Football",
            "Ball games",
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
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          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2007 March 27, The Associated Press, “Eagles Boost Defense With Deal for Spikes”, in New York Times",
          "text": "He has the ability to play all three linebacking positions and we’re happy to add him to our defense.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Playing as a linebacker"
      ],
      "id": "en-linebacking-en-noun-awv2HdFu",
      "links": [
        [
          "American football",
          "American football"
        ],
        [
          "linebacker",
          "linebacker"
        ]
      ],
      "raw_glosses": [
        "(American football) Playing as a linebacker"
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "American-football",
        "ball-games",
        "football",
        "games",
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "word": "linebacking"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "line",
        "3": "backing"
      },
      "expansion": "line + backing",
      "name": "compound"
    }
  ],
  "etymology_text": "line + backing",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "linebacking (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns",
        "en:Football (American)"
      ],
      "examples": [
        {
          "ref": "2007 March 27, The Associated Press, “Eagles Boost Defense With Deal for Spikes”, in New York Times",
          "text": "He has the ability to play all three linebacking positions and we’re happy to add him to our defense.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Playing as a linebacker"
      ],
      "links": [
        [
          "American football",
          "American football"
        ],
        [
          "linebacker",
          "linebacker"
        ]
      ],
      "raw_glosses": [
        "(American football) Playing as a linebacker"
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "American-football",
        "ball-games",
        "football",
        "games",
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "word": "linebacking"
}