爺じいさん・ジイさん爺さん表記・読み:祖父さん・じいさん・ジイさん1grandfather名詞usu. 祖父さん; may be used after name as honorificword usually written using kana alone2male senior-citizen名詞usu. 爺さん; may be used after name as honorificword usually written using kana alone札へ残す語をコピー