"cyffin" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "la",
        "3": "cōnfīnium"
      },
      "expansion": "Latin cōnfīnium",
      "name": "der"
    }
  ],
  "etymology_text": "From Latin cōnfīnium.",
  "forms": [
    {
      "form": "cyffiniau",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "cyffinydd",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "cyffin",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "gyffin",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-soft"
      ]
    },
    {
      "form": "nghyffin",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-nasal"
      ]
    },
    {
      "form": "chyffin",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-aspirate"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "cyffiniau",
        "pl2": "cyffinydd"
      },
      "expansion": "cyffin f (plural cyffiniau or cyffinydd)",
      "name": "cy-noun"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "cy",
          "name": "Geography",
          "orig": "cy:Geography",
          "parents": [
            "Earth sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "english": "frontier",
          "tags": [
            "masculine"
          ],
          "word": "cyffindir"
        },
        {
          "english": "border town",
          "tags": [
            "feminine"
          ],
          "word": "cyffindref"
        },
        {
          "english": "confine",
          "tags": [
            "verb"
          ],
          "word": "cyffinio"
        },
        {
          "english": "adjacent",
          "tags": [
            "adjective"
          ],
          "word": "cyffiniol"
        }
      ],
      "glosses": [
        "border, limit, frontier"
      ],
      "id": "en-cyffin-cy-noun-XJ~BIEJn",
      "links": [
        [
          "border",
          "border"
        ],
        [
          "limit",
          "limit"
        ],
        [
          "frontier",
          "frontier"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈkəfɪn/"
    }
  ],
  "word": "cyffin"
}

{
  "derived": [
    {
      "english": "frontier",
      "tags": [
        "masculine"
      ],
      "word": "cyffindir"
    },
    {
      "english": "border town",
      "tags": [
        "feminine"
      ],
      "word": "cyffindref"
    },
    {
      "english": "confine",
      "tags": [
        "verb"
      ],
      "word": "cyffinio"
    },
    {
      "english": "adjacent",
      "tags": [
        "adjective"
      ],
      "word": "cyffiniol"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "la",
        "3": "cōnfīnium"
      },
      "expansion": "Latin cōnfīnium",
      "name": "der"
    }
  ],
  "etymology_text": "From Latin cōnfīnium.",
  "forms": [
    {
      "form": "cyffiniau",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "cyffinydd",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "cyffin",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "gyffin",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-soft"
      ]
    },
    {
      "form": "nghyffin",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-nasal"
      ]
    },
    {
      "form": "chyffin",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-aspirate"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f",
        "2": "cyffiniau",
        "pl2": "cyffinydd"
      },
      "expansion": "cyffin f (plural cyffiniau or cyffinydd)",
      "name": "cy-noun"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Welsh countable nouns",
        "Welsh entries with incorrect language header",
        "Welsh feminine nouns",
        "Welsh lemmas",
        "Welsh nouns",
        "Welsh nouns with red links in their headword lines",
        "Welsh terms derived from Latin",
        "Welsh terms with IPA pronunciation",
        "cy:Geography"
      ],
      "glosses": [
        "border, limit, frontier"
      ],
      "links": [
        [
          "border",
          "border"
        ],
        [
          "limit",
          "limit"
        ],
        [
          "frontier",
          "frontier"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈkəfɪn/"
    }
  ],
  "word": "cyffin"
}