"cyfystyr" meaning in Welsh

{
  "categories": [
    {
      "kind": "other",
      "name": "Woorden in het Welsh",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Zelfstandig naamwoord in het Welsh",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "pos_title": "Zelfstandig naamwoord",
  "senses": [
    {
      "glosses": [
        "synoniem"
      ],
      "id": "nl-cyfystyr-cy-noun-jZbj6U35"
    }
  ],
  "word": "cyfystyr"
}

{
  "categories": [
    "Woorden in het Welsh",
    "Zelfstandig naamwoord in het Welsh"
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "pos_title": "Zelfstandig naamwoord",
  "senses": [
    {
      "glosses": [
        "synoniem"
      ]
    }
  ],
  "word": "cyfystyr"
}