"6x6" meaning in English

{
  "forms": [
    {
      "form": "6x6s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "6x6"
      },
      "expansion": "6x6 (plural 6x6s)",
      "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": "English reduplicated coordinated pairs",
          "parents": [
            "Reduplicated coordinated pairs",
            "Coordinated pairs",
            "Reduplications",
            "Terms by etymology"
          ],
          "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": "Automotive",
          "orig": "en:Automotive",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a six-wheeled vehicle with six-wheel drive (each wheel has powered drive)"
      ],
      "id": "en-6x6-en-noun-dQDzoNez",
      "links": [
        [
          "automotive",
          "automotive"
        ]
      ],
      "raw_glosses": [
        "(automotive) a six-wheeled vehicle with six-wheel drive (each wheel has powered drive)"
      ],
      "related": [
        {
          "word": "4x4"
        },
        {
          "word": "8x8"
        }
      ],
      "topics": [
        "automotive",
        "transport",
        "vehicles"
      ],
      "wikipedia": [
        "6x6"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sɪks baɪ sɪks/",
      "tags": [
        "UK",
        "US"
      ]
    }
  ],
  "word": "6x6"
}

{
  "forms": [
    {
      "form": "6x6s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "6x6"
      },
      "expansion": "6x6 (plural 6x6s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "4x4"
    },
    {
      "word": "8x8"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English palindromes",
        "English reduplicated coordinated pairs",
        "English terms spelled with numbers",
        "English words without vowels",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Automotive"
      ],
      "glosses": [
        "a six-wheeled vehicle with six-wheel drive (each wheel has powered drive)"
      ],
      "links": [
        [
          "automotive",
          "automotive"
        ]
      ],
      "raw_glosses": [
        "(automotive) a six-wheeled vehicle with six-wheel drive (each wheel has powered drive)"
      ],
      "topics": [
        "automotive",
        "transport",
        "vehicles"
      ],
      "wikipedia": [
        "6x6"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sɪks baɪ sɪks/",
      "tags": [
        "UK",
        "US"
      ]
    }
  ],
  "word": "6x6"
}