• 円まるい — round (variant use)
• 百円ひゃくえん — 100 yen
• 円高えんだか — strong yen
• 円安えんやす — weak yen
• 円周率えんしゅうりつ — pi (π)
• 円形えんけい — circular shape
• 円満えんまん — harmonious; peaceful
• 円卓えんたく — round table

“円” literally means "circle" but is most widely used to refer to the Japanese currency. Its shape-based meaning reflects coins and roundness, while its economic use is tied to daily life and trade.

この 本ほんは 五百円ごひゃくえん です。
This book costs 500 yen.

円えんは 日本にほんの 通貨つうかです。
The yen is Japan’s currency.