Meaning of 秘丸 in Japanese

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Definition of 秘丸

まる(maru) 【丸】

(n) 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.
(pref) full (e.g. month, day, etc.)
我々は丸一ヶ月間、ブロードウェーで出演予定です。
We're booked for the whole month on Broadway.
perfection; purity
suffix for ship names

がん(gan) 【丸】