- 丸い【まるい】 - round, circular, spherical, curved, smooth, harmonious, calm, peaceful, amiable, amicable 
- 弾丸【だんがん】 - bullet, shot, shell 
- 日の丸【ひのまる】 - outline of the Sun (esp. represented as a red circle), the Japanese flag 
- 丸み【まるみ】 - roundness, rotundity, mellowness, maturity 
- 丸々【まるまる】 - plump, rotund, chubby, entirely, completely, wholly 
- 丸める【まるめる】 - to make round, to roll up, to curl up, to seduce, to cajole, to explain away, to round off (a fraction), to shave (one's head), to lump together 
- 丸刈り【まるがり】 - buzz cut, close crop 
- 丸太【まるた】 - log, dace (Tribolodon hakonensis), test subject (of human experiments performed by Unit 731 during WWII), prostitute dressed as a Buddhist nun 
- 一丸【いちがん】 - one lump, one body, one group 
- 丸ごと【まるごと】 - in its entirety, whole, wholly 
- 本丸【ほんまる】 - inner citadel, core, center, centre, focus, crux 
- 丸抱え【まるがかえ】 - completely financed, sponsored, under patronage 
- 砲丸投げ【ほうがんなげ】 - shot put 
- 丸腰【まるごし】 - unarmed, without weapons 
- 丸出し【まるだし】 - (fully) exposed, bare, uncovered, in full view, undisguised, broad (accent) 
- 丸裸【まるはだか】 - being stark-naked, having no possessions, losing all one's belongings 
- 丸顔【まるがお】 - round face, moon face 
- 丸木【まるき】 - log 
- 丸見え【まるみえ】 - full view, plain sight, completely visible 
- 丸本【まるぼん】 - reciter's book, complete set of books