Last Updated
：2026/01/11
凸
Hiragana
でこ
Kanji
額
Noun
Japanese Meaning
おでこ。ひたい。 / 物の表面から外側に向かって出っ張っている部分。凸部。 / 数学において、ある集合が線分を含むような形状を指す「凸集合」、あるいはそのような性質をもつ関数を指す「凸関数」などに使われる語。
Easy Japanese Meaning
かおのめのうえにあるひたいのこと。
Chinese (Simplified) Meaning
额头 / 前额 / 脑门
Chinese (Traditional) Meaning
額頭 / 前額
Korean Meaning
이마 / 불룩한 이마(속어)
Indonesian
dahi / kening / jidat (informal)
Vietnamese Meaning
trán (khẩu ngữ) / chỗ lồi; phần nhô ra
Tagalog Meaning
noo / umbok (lalo na sa noo)
Sense（1）
forehead
（ romanization ）
（ hiragana ）
Quizzes for review
See correct answer
His forehead is very prominent.
See correct answer
彼の凸はとても目立つ。
Japanese - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen changing entry name
- Users authorized to vote on judging - All Users
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
