1
adjective (keiyoushi)
round;circular;spherical
丸い usu. refers to ball-shaped, and 円い to disc-shaped objects
コロンブスは地球が丸いと信じていた。
Columbus believed that the earth was round.
2
adjective (keiyoushi)
curved;smooth
3
adjective (keiyoushi)
harmonious;calm;peaceful;amiable;amicable
See also:
丸く収まる (まるくおさまる)
彼が仲裁してその場は丸く収めた。
He intervened and settled the matter peacefully for the time being.
Other forms
円い 【まるい】