たんこう

たんこう 【炭鉱 炭坑 】a coal mine . (!縦坑 shaft, pit / 横坑 gallery ) ▸ 炭鉱で働く work in [╳at ] a coal mine .炭鉱夫 a coal miner .

たんこうしき

たんこうしき 【単項式 】〘数学 〙a monomial (expression ).

たんこうぼん

たんこうぼん 【単行本 】a book .▸ 彼は新聞や雑誌に書いたエッセーを単行本にした He published his essays he wrote for newspapers and magazines in book form .He published a book of essays chosen from his contributions to newspapers and magazines .