百ひゃく円えん玉だまひゃくえんだまじ字FuriganaMeanings1noun100 yen coinRefers specifically to the Japanese 100-yen coin, a common denomination in everyday transactions.自じ動どう販はん売ばい機きに百ひゃく円えん玉だまを入いれてジュースを買かった。I put a 100 yen coin into the vending machine and bought a juice.財さい布ふの中なかに百ひゃく円えん玉だまがたくさんある。There are many 100 yen coins in my wallet.