"blueliner" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "blue",
        "3": "liner"
      },
      "expansion": "blue + liner",
      "name": "compound"
    }
  ],
  "etymology_text": "blue + liner, after blue line in hockey",
  "forms": [
    {
      "form": "blueliners",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "blueliner (plural blueliners)",
      "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": "topical",
          "langcode": "en",
          "name": "Ice hockey",
          "orig": "en:Ice hockey",
          "parents": [
            "Hockey",
            "Winter sports",
            "Sports",
            "Winter activities",
            "Human activity",
            "Winter",
            "Human behaviour",
            "Seasons",
            "Human",
            "Nature",
            "Periodic occurrences",
            "All topics",
            "Time",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2009 February 9, Damien Cox, “Leafs struggle to patch up blue line”, in Toronto Star",
          "text": "On Saturday, hard-luck blueliner Mike Van Ryn was blasted into the end boards by Montreal forward Max Pacioretty and isn't expected to be available for a week or perhaps longer with a lower body injury.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A defenceman"
      ],
      "id": "en-blueliner-en-noun-xc9SI7qU",
      "links": [
        [
          "ice hockey",
          "ice hockey"
        ],
        [
          "defenceman",
          "defenceman"
        ]
      ],
      "raw_glosses": [
        "(ice hockey) A defenceman"
      ],
      "topics": [
        "hobbies",
        "ice-hockey",
        "lifestyle",
        "skating",
        "sports"
      ]
    }
  ],
  "word": "blueliner"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "blue",
        "3": "liner"
      },
      "expansion": "blue + liner",
      "name": "compound"
    }
  ],
  "etymology_text": "blue + liner, after blue line in hockey",
  "forms": [
    {
      "form": "blueliners",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "blueliner (plural blueliners)",
      "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 quotations",
        "en:Ice hockey"
      ],
      "examples": [
        {
          "ref": "2009 February 9, Damien Cox, “Leafs struggle to patch up blue line”, in Toronto Star",
          "text": "On Saturday, hard-luck blueliner Mike Van Ryn was blasted into the end boards by Montreal forward Max Pacioretty and isn't expected to be available for a week or perhaps longer with a lower body injury.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A defenceman"
      ],
      "links": [
        [
          "ice hockey",
          "ice hockey"
        ],
        [
          "defenceman",
          "defenceman"
        ]
      ],
      "raw_glosses": [
        "(ice hockey) A defenceman"
      ],
      "topics": [
        "hobbies",
        "ice-hockey",
        "lifestyle",
        "skating",
        "sports"
      ]
    }
  ],
  "word": "blueliner"
}