"speed cube" meaning in English

{
  "forms": [
    {
      "form": "speed cubes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "speed cube (plural speed cubes)",
      "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": "Rubik's Cube",
          "orig": "en:Rubik's Cube",
          "parents": [
            "Games",
            "Toys",
            "Recreation",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A type of Rubik's cube that is constructed for speedy manipulation, for use in speed cubing, speedily solving the scrambled puzzle cube."
      ],
      "id": "en-speed_cube-en-noun-Q5WBIJnE",
      "links": [
        [
          "Rubik's cube",
          "Rubik's cube"
        ],
        [
          "speed cubing",
          "speed cubing"
        ],
        [
          "puzzle cube",
          "puzzle cube"
        ]
      ],
      "synonyms": [
        {
          "word": "speedcube"
        },
        {
          "word": "speed-cube"
        }
      ]
    }
  ],
  "word": "speed cube"
}

{
  "forms": [
    {
      "form": "speed cubes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "speed cube (plural speed cubes)",
      "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",
        "en:Rubik's Cube"
      ],
      "glosses": [
        "A type of Rubik's cube that is constructed for speedy manipulation, for use in speed cubing, speedily solving the scrambled puzzle cube."
      ],
      "links": [
        [
          "Rubik's cube",
          "Rubik's cube"
        ],
        [
          "speed cubing",
          "speed cubing"
        ],
        [
          "puzzle cube",
          "puzzle cube"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "speedcube"
    },
    {
      "word": "speed-cube"
    }
  ],
  "word": "speed cube"
}