"golau ôl" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "back light"
      },
      "expansion": "“back light”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "back light"
      },
      "expansion": "Literally, “back light”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “back light”.",
  "forms": [
    {
      "form": "goleuau ôl",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "goleuau ôl"
      },
      "expansion": "golau ôl m (plural goleuau ôl)",
      "name": "cy-noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "cy",
          "name": "Auto parts",
          "orig": "cy:Auto parts",
          "parents": [
            "Automobiles",
            "Automotive",
            "Vehicles",
            "Transport",
            "Machines",
            "All topics",
            "Technology",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "cy",
          "name": "Light sources",
          "orig": "cy:Light sources",
          "parents": [
            "Light",
            "Energy",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Coordinate term: golau blaen"
        }
      ],
      "glosses": [
        "rear light, taillamp"
      ],
      "id": "en-golau_ôl-cy-noun-MgbRI0Hg",
      "links": [
        [
          "rear light",
          "rear light"
        ],
        [
          "taillamp",
          "taillamp"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "golau ôl"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "back light"
      },
      "expansion": "“back light”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "back light"
      },
      "expansion": "Literally, “back light”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “back light”.",
  "forms": [
    {
      "form": "goleuau ôl",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "goleuau ôl"
      },
      "expansion": "golau ôl m (plural goleuau ôl)",
      "name": "cy-noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Welsh countable nouns",
        "Welsh entries with incorrect language header",
        "Welsh lemmas",
        "Welsh masculine nouns",
        "Welsh multiword terms",
        "Welsh nouns",
        "Welsh nouns with red links in their headword lines",
        "cy:Auto parts",
        "cy:Light sources"
      ],
      "examples": [
        {
          "text": "Coordinate term: golau blaen"
        }
      ],
      "glosses": [
        "rear light, taillamp"
      ],
      "links": [
        [
          "rear light",
          "rear light"
        ],
        [
          "taillamp",
          "taillamp"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "golau ôl"
}