"loosehead" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "loose",
        "3": "head"
      },
      "expansion": "loose + head",
      "name": "compound"
    }
  ],
  "etymology_text": "loose + head",
  "forms": [
    {
      "form": "looseheads",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "loosehead (plural looseheads)",
      "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": "Rugby",
          "orig": "en:Rugby",
          "parents": [
            "Ball games",
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "prop who plays on the left hand side of the front row of the scrum, such that in a scrum, their head is not tightly bound (unlike that of the tighthead)"
      ],
      "id": "en-loosehead-en-noun-c5jCIUzu",
      "links": [
        [
          "rugby",
          "rugby"
        ],
        [
          "prop",
          "prop"
        ],
        [
          "front row",
          "front row"
        ],
        [
          "scrum",
          "scrum"
        ],
        [
          "tighthead",
          "tighthead"
        ]
      ],
      "raw_glosses": [
        "(rugby) prop who plays on the left hand side of the front row of the scrum, such that in a scrum, their head is not tightly bound (unlike that of the tighthead)"
      ],
      "related": [
        {
          "word": "tighthead"
        }
      ],
      "topics": [
        "ball-games",
        "games",
        "hobbies",
        "lifestyle",
        "rugby",
        "sports"
      ],
      "translations": [
        {
          "code": "cs",
          "lang": "Czech",
          "sense": "rugby player",
          "tags": [
            "masculine"
          ],
          "word": "levý pilíř"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "rugby player",
          "tags": [
            "masculine"
          ],
          "word": "pilier gauche"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "rugby player",
          "tags": [
            "masculine"
          ],
          "word": "linker Pfeiler"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "rugby player",
          "tags": [
            "masculine"
          ],
          "word": "lewy filar"
        }
      ]
    }
  ],
  "word": "loosehead"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "loose",
        "3": "head"
      },
      "expansion": "loose + head",
      "name": "compound"
    }
  ],
  "etymology_text": "loose + head",
  "forms": [
    {
      "form": "looseheads",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "loosehead (plural looseheads)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "tighthead"
    }
  ],
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "en:Rugby"
      ],
      "glosses": [
        "prop who plays on the left hand side of the front row of the scrum, such that in a scrum, their head is not tightly bound (unlike that of the tighthead)"
      ],
      "links": [
        [
          "rugby",
          "rugby"
        ],
        [
          "prop",
          "prop"
        ],
        [
          "front row",
          "front row"
        ],
        [
          "scrum",
          "scrum"
        ],
        [
          "tighthead",
          "tighthead"
        ]
      ],
      "raw_glosses": [
        "(rugby) prop who plays on the left hand side of the front row of the scrum, such that in a scrum, their head is not tightly bound (unlike that of the tighthead)"
      ],
      "topics": [
        "ball-games",
        "games",
        "hobbies",
        "lifestyle",
        "rugby",
        "sports"
      ]
    }
  ],
  "translations": [
    {
      "code": "cs",
      "lang": "Czech",
      "sense": "rugby player",
      "tags": [
        "masculine"
      ],
      "word": "levý pilíř"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "rugby player",
      "tags": [
        "masculine"
      ],
      "word": "pilier gauche"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "rugby player",
      "tags": [
        "masculine"
      ],
      "word": "linker Pfeiler"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "rugby player",
      "tags": [
        "masculine"
      ],
      "word": "lewy filar"
    }
  ],
  "word": "loosehead"
}