Last Updated
：2026/01/08
とつ
Kanji
凸
Noun
Japanese Meaning
物の表面が外側にふくらんでいること、またその形状 / 数学で、平面図形や曲線が凸である性質や状態 / 将棋や囲碁などで、相手陣地に深く踏み込んだ駒の形勢（「凸形」など）
Easy Japanese Meaning
とつは、外にむかってふくらんでいる形。
Chinese (Simplified) Meaning
凸起 / 凸面 / 凸形
Chinese (Traditional) Meaning
凸起 / 凸面 / 外凸
Korean Meaning
볼록함 / 볼록한 모양 / 돌출부
Indonesian
kecembungan / bentuk cembung / tonjolan
Vietnamese Meaning
sự lồi; độ lồi / phần lồi; chỗ nhô lên
Tagalog Meaning
umbok / pag-umbok / kurba palabas
Sense（1）
凸: convexity
（ romanization ）
Quizzes for review
See correct answer
This mirror has a convex shape.
See correct answer
この鏡はとつの形状をしています。
Japanese - English
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