爺じいちゃん・じーちゃん・じっちゃん・じぃちゃん爺ちゃん表記・読み:祖父ちゃん・じいちゃん・じーちゃん・じっちゃん・じぃちゃん1grandfather名詞familiar languageword usually written using kana alone2male senior-citizen名詞word usually written using kana alone札へ残す語をコピー