"20日" meaning in Japonais

{
  "categories": [
    {
      "kind": "other",
      "name": "Cardinaux en japonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Jours du mois en japonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en japonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Japonais",
      "orig": "japonais",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Japonais",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "二十日"
        }
      ],
      "glosses": [
        "Variante orthographique de 二十日."
      ],
      "id": "fr-20日-ja-noun-U4UHvAKd",
      "tags": [
        "alt-of"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ha.tsɯ.ka\\"
    }
  ],
  "word": "20日"
}

{
  "categories": [
    "Cardinaux en japonais",
    "Jours du mois en japonais",
    "Noms communs en japonais",
    "japonais"
  ],
  "lang": "Japonais",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "二十日"
        }
      ],
      "glosses": [
        "Variante orthographique de 二十日."
      ],
      "tags": [
        "alt-of"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ha.tsɯ.ka\\"
    }
  ],
  "word": "20日"
}