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Kotomora

凸

convex, beetle brow, uneven

JLPTN1StatusJōyō · secondary schoolFrequencyTop 5,000Strokes5

Readings

On'yomi

  • トツ

Kun'yomi

  • でこ

Meaning

凸 centers on a shape that sticks out: a convex surface, a protruding brow, or any unevenness where one part rises above the rest.

Most common words using 凸

20 of 36
  • 凸でこ

    brow; forehead

  • 凸とつ

    convex

  • 凸凹でこぼこ
    N2

    unevenness; roughness; ruggedness; bumpiness

  • 凹凸おうとつ

    unevenness; bumpiness; roughness; ruggedness

  • 凸版印刷とっぱんいんさつ

    letterpress; relief printing

  • 凸ピンでこピン

    finger flick to the forehead

  • 凸レンズとつレンズ

    convex lens

  • 凸版とっぱん

    letterpress; relief printing

  • ちん凸ちんとつ

    sending dick pics; cyberflashing

  • 両凸りょうとつ

    biconvex

  • 亜鉛凸版あえんとっぱん

    photoengraving

  • 写真凸版しゃしんとっぱん

    phototype

  • 凸するとつする

    to charge; to rush; to assault; to attack

  • 凸るとつる

    to charge; to rush; to assault; to attack

  • 凸円とつえん

    convexity

  • 凸凹コンビでこぼこコンビ

    odd couple; incongruous couple

  • 凸凹猛獣狩でこぼこもうじゅうがり

    Africa Scream (film)

  • 凸凹紙とつおうし

    embossed paper

  • 凸包とつほう

    convex hull

  • 凸坊でこぼう

    beetle-browed boy; mischief

Explore all words using 凸 →

Study

Etymology

凸 is a pictograph of a shape with a raised middle, directly representing the idea of convexity or protrusion.

Meaning mnemonic

The central vertical stroke pushes up past the top border, like a bump on a surface. 凸 is anything convex or sticking out unevenly.

Reading mnemonic

For トツ, imagine a toe sticking out from a flat surface, making it uneven: toe -> トツ, and the bump is convex.