雁がん書しょがんしょMeanings1nounletter; epistleformal or literaryFormal or literary term for a letter, evoking the classical image of a wild goose carrying a message. Rare in modern everyday speech; 手紙 is the common word.彼かれは故こ郷きょうの友ともに雁がん書しょをしたためた。He wrote a letter to a friend back home.
