"tackle twill" meaning in English

{
  "forms": [
    {
      "form": "tackle twills",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "tackle twill (usually uncountable, plural tackle twills)",
      "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"
        }
      ],
      "glosses": [
        "A tough fabric originally used for American football pants. As newer fabrics were created and tackle twill was replaced with other materials such as Lycra, its primary use became lettering (name and number embroidery), as on athletic apparel."
      ],
      "id": "en-tackle_twill-en-noun-FP6iF416",
      "links": [
        [
          "American football",
          "American football"
        ],
        [
          "Lycra",
          "Lycra"
        ],
        [
          "embroidery",
          "embroidery"
        ]
      ],
      "tags": [
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "tackle twill"
}

{
  "forms": [
    {
      "form": "tackle twills",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "tackle twill (usually uncountable, plural tackle twills)",
      "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",
        "English uncountable nouns"
      ],
      "glosses": [
        "A tough fabric originally used for American football pants. As newer fabrics were created and tackle twill was replaced with other materials such as Lycra, its primary use became lettering (name and number embroidery), as on athletic apparel."
      ],
      "links": [
        [
          "American football",
          "American football"
        ],
        [
          "Lycra",
          "Lycra"
        ],
        [
          "embroidery",
          "embroidery"
        ]
      ],
      "tags": [
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "tackle twill"
}