noun
three concentric circles; triple circle
Refers to a symbol consisting of three concentric circles, often used as a mark of excellence or highest grade in Japanese grading systems.
テストで三重丸をもらった。
I got a triple circle on the test.
この書類の三重丸は最高評価を意味する。
The triple circle on this document means the highest evaluation.
花丸 is a flower-shaped circle used as a praise mark, similar in function to 三重丸 but visually distinct and more common in elementary school contexts.
Compound of 三 (three), 重 (layer, fold), and 丸 (circle). The reading さんじゅうまる follows standard on'yomi for the first two kanji and kun'yomi for 丸.