"Tŷ Gwyn" meaning in Welsh

{
  "head_templates": [
    {
      "args": {
        "1": "m",
        "head": "Tŷ Gwyn"
      },
      "expansion": "Tŷ Gwyn m",
      "name": "cy-proper noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "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": "US politics",
          "orig": "cy:US politics",
          "parents": [
            "Politics",
            "United States",
            "Society",
            "North America",
            "All topics",
            "America",
            "Fundamental",
            "Earth",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "Ever since Bill Clinton was in the White House,…",
          "text": "Er pan o'dd Bill Clinton miwn swydd yn ei Dŷ Gwyn,…",
          "type": "example"
        }
      ],
      "glosses": [
        "The White House"
      ],
      "id": "en-Tŷ_Gwyn-cy-name-sIhClvM8",
      "links": [
        [
          "White House",
          "White House"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "Tŷ Gwyn"
}

{
  "head_templates": [
    {
      "args": {
        "1": "m",
        "head": "Tŷ Gwyn"
      },
      "expansion": "Tŷ Gwyn m",
      "name": "cy-proper noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Welsh entries with incorrect language header",
        "Welsh lemmas",
        "Welsh masculine nouns",
        "Welsh multiword terms",
        "Welsh proper nouns",
        "Welsh terms with usage examples",
        "cy:US politics"
      ],
      "examples": [
        {
          "english": "Ever since Bill Clinton was in the White House,…",
          "text": "Er pan o'dd Bill Clinton miwn swydd yn ei Dŷ Gwyn,…",
          "type": "example"
        }
      ],
      "glosses": [
        "The White House"
      ],
      "links": [
        [
          "White House",
          "White House"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "Tŷ Gwyn"
}