"Llun" meaning in Welsh

{
  "forms": [
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "Llun",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "Lun",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-soft"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "Llun m",
      "name": "cy-noun"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "dydd Llun"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Welsh entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Welsh terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "cy",
          "name": "Days of the week",
          "orig": "cy:Days of the week",
          "parents": [
            "Periodic occurrences",
            "Time",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of dydd Llun."
      ],
      "id": "en-Llun-cy-noun-Qt72ntaB",
      "links": [
        [
          "dydd Llun",
          "dydd Llun#Welsh"
        ]
      ],
      "related": [
        {
          "sense": "day of the week",
          "word": "Previous: dydd Sul. Next: dydd Mawrth"
        }
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌɬɨːn/",
      "tags": [
        "North-Wales"
      ]
    },
    {
      "ipa": "/ˌɬiːn/",
      "tags": [
        "South-Wales"
      ]
    }
  ],
  "word": "Llun"
}

{
  "forms": [
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "cy-mut",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "Llun",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "Lun",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-soft"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "Llun m",
      "name": "cy-noun"
    }
  ],
  "inflection_templates": [
    {
      "args": {},
      "name": "cy-mut"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "related": [
    {
      "sense": "day of the week",
      "word": "Previous: dydd Sul. Next: dydd Mawrth"
    }
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "dydd Llun"
        }
      ],
      "categories": [
        "Welsh abbreviations",
        "Welsh countable nouns",
        "Welsh entries with incorrect language header",
        "Welsh entries with topic categories using raw markup",
        "Welsh lemmas",
        "Welsh masculine nouns",
        "Welsh nouns",
        "Welsh terms with IPA pronunciation",
        "Welsh terms with non-redundant non-automated sortkeys",
        "cy:Days of the week"
      ],
      "glosses": [
        "Abbreviation of dydd Llun."
      ],
      "links": [
        [
          "dydd Llun",
          "dydd Llun#Welsh"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌɬɨːn/",
      "tags": [
        "North-Wales"
      ]
    },
    {
      "ipa": "/ˌɬiːn/",
      "tags": [
        "South-Wales"
      ]
    }
  ],
  "word": "Llun"
}