Noun
circle
ジョンとキャシーは興味も性格も違う。その二人を一緒にさせようとするのは丸穴に角釘を打つようなものだ。John and Cathy have different tastes and different characters. Trying to get them together is like putting a square peg in a round hole. Noun, Noun, used as a prefix
entirety; whole; full; complete
Noun
money; dough; moola
Slang
enclosure inside a castle's walls
esp. 丸
soft-shelled turtle
Kansai dialectsee スッポン
Suffix
suffix for ship names; suffix for names of people (esp. infants); suffix for names of swords, armour, musical instruments, etc.; suffix for names of dogs, horses, etc.
esp. 丸see 麻呂
Also written 円【まる】