"追伸" meaning in Japonais

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms communs en japonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Japonais",
      "orig": "japonais",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "ついしん",
      "tags": [
        "hiragana"
      ]
    },
    {
      "form": "tsuishin",
      "tags": [
        "transcription"
      ]
    }
  ],
  "lang": "Japonais",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en japonais",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "roman": "tsuishin ga nagai.",
          "text": "追伸　が　長い。",
          "translation": "C'est un long post-scriptum."
        }
      ],
      "glosses": [
        "Post-scriptum, PS."
      ],
      "id": "fr-追伸-ja-noun-TbLQUk4m"
    }
  ],
  "sounds": [
    {
      "ipa": "\\tsɯ.i.ʃin\\"
    }
  ],
  "word": "追伸"
}

{
  "categories": [
    "Noms communs en japonais",
    "japonais"
  ],
  "forms": [
    {
      "form": "ついしん",
      "tags": [
        "hiragana"
      ]
    },
    {
      "form": "tsuishin",
      "tags": [
        "transcription"
      ]
    }
  ],
  "lang": "Japonais",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Exemples en japonais"
      ],
      "examples": [
        {
          "roman": "tsuishin ga nagai.",
          "text": "追伸　が　長い。",
          "translation": "C'est un long post-scriptum."
        }
      ],
      "glosses": [
        "Post-scriptum, PS."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\tsɯ.i.ʃin\\"
    }
  ],
  "word": "追伸"
}