"defensive back" meaning in English

{
  "forms": [
    {
      "form": "defensive backs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "defensive back (plural defensive backs)",
      "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": "Canadian football",
          "orig": "en:Canadian football",
          "parents": [
            "Football",
            "Ball games",
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "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"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Collective term for the defensive players who are in position farthest from the ball at the start of a play and whose principal responsibility is to defend against passes. Includes cornerbacks and safeties in both codes, and defensive halfbacks in the Canadian game."
      ],
      "id": "en-defensive_back-en-noun-DmMvvuj-",
      "links": [
        [
          "American football",
          "American football"
        ],
        [
          "Canadian football",
          "Canadian football"
        ],
        [
          "players",
          "players"
        ],
        [
          "position",
          "position"
        ],
        [
          "defend",
          "defend"
        ],
        [
          "against",
          "against"
        ],
        [
          "pass",
          "forward pass"
        ],
        [
          "cornerback",
          "cornerback"
        ],
        [
          "safeties",
          "safety"
        ],
        [
          "defensive halfback",
          "defensive halfback"
        ]
      ],
      "raw_glosses": [
        "(American football, Canadian football) Collective term for the defensive players who are in position farthest from the ball at the start of a play and whose principal responsibility is to defend against passes. Includes cornerbacks and safeties in both codes, and defensive halfbacks in the Canadian game."
      ],
      "tags": [
        "Canadian"
      ],
      "topics": [
        "American-football",
        "ball-games",
        "football",
        "games",
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "word": "defensive back"
}

{
  "forms": [
    {
      "form": "defensive backs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "defensive back (plural defensive backs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Canadian football",
        "en:Football (American)"
      ],
      "glosses": [
        "Collective term for the defensive players who are in position farthest from the ball at the start of a play and whose principal responsibility is to defend against passes. Includes cornerbacks and safeties in both codes, and defensive halfbacks in the Canadian game."
      ],
      "links": [
        [
          "American football",
          "American football"
        ],
        [
          "Canadian football",
          "Canadian football"
        ],
        [
          "players",
          "players"
        ],
        [
          "position",
          "position"
        ],
        [
          "defend",
          "defend"
        ],
        [
          "against",
          "against"
        ],
        [
          "pass",
          "forward pass"
        ],
        [
          "cornerback",
          "cornerback"
        ],
        [
          "safeties",
          "safety"
        ],
        [
          "defensive halfback",
          "defensive halfback"
        ]
      ],
      "raw_glosses": [
        "(American football, Canadian football) Collective term for the defensive players who are in position farthest from the ball at the start of a play and whose principal responsibility is to defend against passes. Includes cornerbacks and safeties in both codes, and defensive halfbacks in the Canadian game."
      ],
      "tags": [
        "Canadian"
      ],
      "topics": [
        "American-football",
        "ball-games",
        "football",
        "games",
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "word": "defensive back"
}