"tref anghyfannedd" meaning in Welsh

{
  "forms": [
    {
      "form": "trefi anghyfannedd",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "trefydd anghyfannedd",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "trefi anghyfannedd",
        "pl2": "trefydd anghyfannedd"
      },
      "expansion": "tref anghyfannedd f (plural trefi anghyfannedd or trefydd anghyfannedd)",
      "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": "place",
          "langcode": "cy",
          "name": "Places",
          "orig": "cy:Places",
          "parents": [
            "Names",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "ghost town"
      ],
      "id": "en-tref_anghyfannedd-cy-noun-7uRZuY6W",
      "links": [
        [
          "ghost town",
          "ghost town"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "tref anghyfannedd"
}

{
  "forms": [
    {
      "form": "trefi anghyfannedd",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "trefydd anghyfannedd",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "trefi anghyfannedd",
        "pl2": "trefydd anghyfannedd"
      },
      "expansion": "tref anghyfannedd f (plural trefi anghyfannedd or trefydd anghyfannedd)",
      "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 feminine nouns",
        "Welsh lemmas",
        "Welsh multiword terms",
        "Welsh nouns",
        "Welsh nouns with red links in their headword lines",
        "cy:Places"
      ],
      "glosses": [
        "ghost town"
      ],
      "links": [
        [
          "ghost town",
          "ghost town"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "tref anghyfannedd"
}