"croesfan twcan" meaning in Welsh

{
  "forms": [
    {
      "form": "croesfannau twcan",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "croesfannau twcan"
      },
      "expansion": "croesfan twcan m (plural croesfannau twcan)",
      "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": "Roads",
          "orig": "cy:Roads",
          "parents": [
            "Road transport",
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "toucan crossing"
      ],
      "id": "en-croesfan_twcan-cy-noun-zWOoNalp",
      "links": [
        [
          "toucan crossing",
          "toucan crossing"
        ]
      ],
      "synonyms": [
        {
          "word": "croesfan dwcan"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "croesfan twcan"
}

{
  "forms": [
    {
      "form": "croesfannau twcan",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "croesfannau twcan"
      },
      "expansion": "croesfan twcan m (plural croesfannau twcan)",
      "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:Roads"
      ],
      "glosses": [
        "toucan crossing"
      ],
      "links": [
        [
          "toucan crossing",
          "toucan crossing"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "croesfan dwcan"
    }
  ],
  "word": "croesfan twcan"
}